19-1009; Rev 0; 10/07 MAX5960L Evaluation Kit/ Evaluation System The MAX5960L evaluation kit (EV kit) is a fully assembled and tested surface-mount quad hot-plug controller printed-circuit board (PCB) with four PCI Express(R) hotplug slots. The circuit uses a MAX5960L IC in an 80-pin TQFP package. The EV kit provides independent power control for the 12V, 3.3V, and 3.3V auxiliary outputs at four PCI Express x16 connectors. The EV kit demonstrates the MAX5960L IC's inrush current control, output overcurrent/short-circuit protection, and input undervoltage monitoring features. The MAX5960L IC controls two separate external n-channel MOSFETs for the 12V and 3.3V outputs of each channel, respectively. Additionally, the MAX5960L has internal MOSFETs that control the 3.3V auxiliary outputs of channels A, B, C, and D. Switches are provided to independently enable/disable each channels' main (12V, 3.3V) and auxiliary supply (3.3V). The MAX5960L EV kit can be reconfigured for evaluating a x1, x4, or x8 PCI Express quad hot-plug design. Alternatively, the EV kit can also be used to demonstrate the MAX5960L hot-plug features without using the PCI Express x16 connectors. The EV kit includes three MAX7313 I/O expanders that enable communication through an SMBusTM interface for the MAX5960L signals and some of the PCI Express channel signals. A CMAXQUSB interface board can be used to enable PC communication through the SMBus interface. Simple Windows(R) 98SE/2000/XP-compatible software is provided to access each MAX7313 I/O expander register at the bit level. The MAX5960L EV kit can also be used in local control, without any software. Order the MAX5960LEVCMAXQU for a complete PCbased evaluation of the MAX5960L. Order the MAX5960LEVKIT if you already have a CMAXQUSB interface board or do not require PC-based evaluation of the MAX5960L. Features Demonstrates PCI Express x16 Quad Hot-Plug Design Independent Output Controls for Each Channel 12V and Up to 5.5A (Adjustable) 3.3V and Up to 3.3A (Adjustable) 3.3VAUX and Up to 0.550A Evaluates Hot-Plugging PCI Express x1, x4, x8, or x16 Line Cards Demonstrates Input Inrush Current Control Demonstrates Output Overcurrent/Short-Circuit Protection Undervoltage Lockout Protection for 12V, 3.3V, and 3.3V Auxiliary Supplies Configurable Power-On Reset (POR) Independent On/Off Controls for Each Channel's 12V/3.3V Main and 3.3V Aux Power Latched Output (MAX5960L) after Fault Conditions; also Evaluates MAX5959A, MAX5960A Autoretry Input/Output Interface Using MAX7313 I/O Expanders (SMBus Interface) or Local Control Can Be Controlled Locally Without Software Windows 98SE/2000/XP-Compatible Software Fully Assembled and Tested Ordering Information PART TYPE MAX5960LEVKIT+ EV Kit MAX5960LEVCMAXQU+ EV System +Denotes lead-free and RoHS-compliant. PCI Express is a registered trademark of PCI-SIG Corp. SMBus is a trademark of Intel Corp. Windows is a registered trademark of Microsoft Corp. Note: The MAX5960L EV kit software can be downloaded from the Maxim website at www.maxim-ic.com/evkitsoftware. However, the CMAXQUSB interface board is required to interface the EV kit to a computer when using the software. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L General Description Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Component Lists MAX5960L EV System PART QTY DESCRIPTION MAX5960LEVKIT+ 1 MAX5960L evaluation kit CMAXQUSB+ 1 SMBus interface board MAX5960L EV Kit DESIGNATION DESIGNATION QTY JU1-JU4, JU9, JU10, JU15, JU16 8 2-pin headers JU5-JU8, JU11-JU14 8 3-pin headers N1-N8 8 20V, 13.4A n-channel MOSFETs (8-pin SO) Vishay Si7448DP-T1-E3 R1-R6, R11-R16, R73, R76, R82, R83, R84, R90, R93, R99-R104 25 10k 5% resistors (0603) R7-R10, R17, R18 0 Not installed, resistors (0603) R30, R36, R45, R50 4 1k 5% resistors (1206) 0 Not installed, resistors (0805) DESCRIPTION 0.1F 10%, 16V X7R ceramic capacitors (0603) Murata GRM188R71C104K DESCRIPTION C1, C3, C40, C41, C42 5 C2, C4, C11, C14, C17, C20, C24, C25, C28, C30 0 Not installed, ceramic capacitors (0805) C5, C10, C15, C16, C21, C22, C23, C26, C27, C31-C34 13 1F 10%, 16V X7R ceramic capacitors (0805) Murata GRM21BR71C105K C12, C18, C29 3 10F 20%, 25V X7R ceramic capacitors (1812) TDK 4532X7R1E106M R31, R35, R38, R42, R46, R49, R52, R55 C13 1 1500F, 16V electrolytic capacitor (12.5mm x 13.5mm case) Panasonic EEVFK1C152Q R32, R34, R47, R48 4 1 3300F, 6.3V, low-Z electrolytic capacitor (12.5mm x 13.5mm case) SANYO 6CE3300KX 0.008 1%, 0.5W sense resistors (2010) Vishay WSL20108L000FEA or IRC LRC-LRF2010LF-01-R008-G C19 2 QTY MAX5960L EV Kit (continued) C35 1 100F, 6.3V, low-Z electrolytic capacitor (6.3mm x 6.0mm case) SANYO 6CE100KX D1 1 1A, 40V Schottky diode (SOD-123) Diodes Inc. 1N5819HW-F D2-D14, D17, D18, D21 16 Green surface-mount LEDs (1206) D15, D16, D19, D20 4 Yellow surface-mount LEDs (1206) J1-J4 4 PCI Express x16 connectors Molex 87715-9305 J5-J8 4 8-pin headers J9 1 2 x 10 right-angle female receptacle R33 1 750 1% resistor (1210) R37, R41, R43, R44, R51, R56, R57, R58, R74, R75, R80, R81, R91, R92, R97, R98 16 150 5% resistors (0603) R39, R40, R53, R54 4 0.005 1%, 0.5W sense resistors (2010) Vishay WSL20105L000FEA R70, R71, R78, R79, R88, R89, R95, R96 8 51k 5% resistors (0603) R72, R77, R94, R111 4 3.3k 5% resistors (0603) SW1-SW4 4 SPST momentary-contact switches SW5-SW12 8 SPDT slide switches _______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System DESIGNATION QTY TP3, TP5, TP7, TP8, TP20, TP22, TP25, TP26, TP28, TP30, TP32, TP33, TP34, TP37, TP38, TP40, TP43, TP44, TP45, OUT1-OUT4 TP11-TP18, TP23, TP29, TP41, TP46, TP47, TP48, TP53, TP54 TP21, TP24, TP27, TP31, TP35, TP36, TP39, TP42, TP50, TP51 DESIGNATION DESCRIPTION 23 QTY U1 1 U2, U3, U4 3 Maxim 16-port I/O expanders (24-pin thin QFN, 4mm x 4mm) MAX7313ATG+ VIN1, VIN2, VIN3, GND, GND 5 Uninsulated banana jacks -- 16 Shunts (JU1-JU16) -- 10 Rubber bumpers -- 1 PCB: MAX5960L Evaluation Kit+ PC test points, red 16 PC test points, black 10 DESCRIPTION Quad PCI Express hot-swap controller (80-pin TQFP 12mm x 12mm x 1mm) Maxim MAX5960LECS+ PC test points, miniature, red Component Suppliers SUPPLIER PHONE WEBSITE Diodes Inc. 805-446-4800 www.diodes.com IRC 361-992-7900 www.irctt.com Murata 770-436-1300 www.murata.com Panasonic 714-373-7366 www.panasonic.com SANYO Electronic Device 619-661-6835 www.sanyodevice.com TDK 847-803-6100 www.component.tdk.com Vishay -- www.vishay.com Note: Indicate that you are using the MAX5959A/MAX5959L/MAX5960A/MAX5960L when contacting these component suppliers. MAX5960L EV Kit Files FILE INSTALL.EXE MAX5960L.EXE Application program HELPFILE.HTM MAX5960L EV kit help file FTD2XX.INF TROUBLESHOOTING_USB.PDF UNINST.INI Quick Start (Hardware Only) Required equipment: * One each of the following DC power supplies: 12V, 25A 3.3V, 20A * Three voltmeters DESCRIPTION Installs the EV kit files on your computer USB device driver file USB driver installation help file Uninstalls the EV kit software The 3.3V power supply can be used to power the main 3.3V and 3.3VAUX inputs. The MAX5960L EV kit is fully assembled and tested. Follow these steps to verify board operation. Do not turn on the power supply until all connections are completed. Note the banana leads connecting the 12V and 3.3V power supply to the EV kit must be short (< 12in long) and rated for at least 25A. _______________________________________________________________________________________ 3 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L EV Kit (continued) Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System MAX5960L Hardware Only Configuration Software and Hardware Quick Start 1) Verify that shunts are installed on jumpers JU1, JU2, JU3, and JU4 (PRES-DET_). 2) Verify that shunts are installed on pins 1 and 2 of jumpers JU5, JU6, JU7, JU8, JU11, JU12, JU13, and JU14 (local switch control). The MAX5960L EV kit is fully assembled and tested. Follow these steps to verify board operation. Do not turn on the power supplies until all connections are completed. 3) Verify that a shunt is not installed on jumpers JU9, JU10, JU15, and JU16 (MRL_). 4) Utilizing short 25A-rated banana leads (< 12in long) connect the 12V DC power supply to the VIN1 banana jack. Utilizing short 25A-rated banana leads (< 12in long) connect the supply ground to the GND banana jack. 5) Utilizing short 25A-rated banana leads (< 12in long) connect the 3.3V DC power supply to the VIN2 banana jack. Utilizing short 25A-rated banana leads (< 12in long) connect the supply ground to the GND banana jack. 6) Connect the 3.3V DC power supply to the VIN3 banana jack with a short banana lead. 7) Connect a voltmeter to the 12VA pad and GND. Connect a voltmeter to the 3.3VA pad and GND. Connect a voltmeter to the 3.3VAUXA pad and GND. 8) Set switches SW5, SW7, SW9, SW11 (ON_), and SW6, SW8, SW10, SW12 (AUXON_) to the OFF position. 9) Turn on both power supplies in any sequence. 10) Set switches SW5 (ONA) and SW6 (AUXONA) to the ON position. 11) Verify that the voltage at channel A pad is as shown below: 12VA = 12V Required Equipment * 12V, 25A 3.3V, 20A (used to power the main 3.3V and 3.3VAUX inputs) * Maxim MAX5960L EV kit and CMAXQUSB interface board (USB cable included) * Windows 98SE/2000/XP computer with a spare USB port * Three voltmeters for confirming output voltages Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and underlined refers to items from the Windows operating system. 1) 2) 3) 4) 3.3VA = 3.3V 3.3VAUXA = 3.3V 5) 12) Sliding switches SW5 and SW6 to the OFF position will disable the channel A main or auxiliary outputs on the MAX5960L EV kit. 6) 13) For evaluating channels B, C, and D, use analogous actions on steps 10 through 12 above for the respective channel switch setting and output voltage reading. See the Jumper and Switch Selection section for more information on configuring the respective channel. 7) 14) Test points are provided to observe the MOSFET's gate voltage respectively with an oscilloscope. 4 One each of the following DC power supplies: 8) MAX5960L Software and Hardware Configuration Visit www.maxim-ic.com/evkitsoftware to download the latest version of the EV kit software, 5960LRxx.ZIP. Save the EV kit software to a temporary folder and uncompress the ZIP file. Install the EV kit software on your computer by running the INSTALL.EXE program inside the temporary folder. The program files are copied and icons are created in the Windows Start | Programs menu. Verify that no shunts are installed on jumpers JU1, JU2, JU3, and JU4 (PRES-DET_). Verify that shunts are installed on pins 2 and 3 of jumpers JU5, JU6, JU7, JU8, JU11, JU12, JU13, and JU14 (computer control). Verify that a shunt is not installed on jumpers JU9, JU10, JU15, and JU16 (MRL_). Utilizing short 25A-rated banana leads (< 12in long) connect the 12V DC power supply to the VIN1 banana jack. Utilizing short 25A-rated banana leads (< 12in long) connect the supply ground to the GND banana jack. Utilizing short 25A-rated banana leads (< 12in long) connect the 3.3V DC power supply to the VIN2 banana jack. Utilizing short 25A-rated banana leads (< 12in long) connect the supply ground to the GND banana jack. Connect the 3.3V DC power supply to the VIN3 banana jack with a short banana lead. Do not turn on the power supplies. _______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System Connect a voltmeter to the 12VA pad and GND. Connect a voltmeter to the 3.3VA pad and GND. Connect a voltmeter to the 3.3VAUXA pad and GND. 10) Connect the CMAXQUSB interface board to the MAX5960L EV kit's J9 connector. 11) Set both CMAXQUSB interface board SW1 switches to enable. These provide pullup resistors for the SDA and SCL 2-wire bus signals. 12) Turn on the 12V and 3.3V power supplies for the EV kit. The CMAXQUSB interface board is powered through the computer's USB port. 13) Connect the USB cable from the PC to the CMAXQUSB board. A Building Driver Database window should pop up in addition to a New Hardware Found message if this is the first time the EV kit board is connected to the PC. If you do not see a window that is similar to the one described above after 30s, try removing the USB cable from the CMAXQUSB interface board and reconnect it. Administrator privileges are required to install the USB device driver on Windows 2000 and XP. Refer to the document TROUBLESHOOTING_USB.PDF included with the software if you have any problems during this step. 14) Follow the directions of the Add New Hardware Wizard to install the USB device driver. Choose the Search for the best driver for your device option. Specify the location of the device driver to be C:\Program Files\MAX5960L (default installation directory) using the Browse button. 15) Start the MAX5960L program by opening its icon in the Start | Programs menu. 16) The software will detect the CMAXQUSB interface board, the SMBus address of ICs U2, U3, U4, and will also be updated on the status screen. The software is then ready for changes in the command section. 17) Install a shunt on jumper JU3 (PRES-DETA) or insert a PCI Express card into channel A PCI Express connector J1. 18) To evaluate channels B, C, and D, use analogous actions on step 17 above for the respective channel. See the Jumper and Switch Selection section for more information on configuring each channel. See the Detailed Description of Software section for more information on the software GUI features. See the MAX7313 Input/Output Expanders and SMBus Interface section for configuring the input/output expander, using the CMAXQUSB interface board. Detailed Description The MAX5960L EV kit demonstrates a PCI Express x16 quad hot-plug circuit design. Four PCI Express x16 channels (A, B, C, and D) are provided to evaluate PCI Express x16 line cards. The EV kit uses a latching MAX5960L hot-plug controller in an 80-pin TQFP package to control all four channels' output power and monitor for faults. The MAX5960L IC controls each channel's output power independently. External n-channel MOSFETs are used to control power to the 12V and 3.3V outputs of each channel. Current-sensing resistors R32, R47, R34, and R48 are used for the 12V, and resistors R39, R53, R40, and R54 for the 3.3V outputs of the respective channel. Internal MOSFETs on the MAX5960L control the 3.3V auxiliary outputs of each channel. If an overcurrent fault persists on either channel, the MAX5960L will shut down the respective channel. The fault is reported at the respective channels' open-drain power-good pin (PWRGD_) and fault pin (FAULT_). The MAX5960L power-on reset (POR) is configured for 160ms; however, the POR can be reconfigured after installing resistor R18. Slide switches are provided to enable/disable each channel's main output and auxiliary output independently when the SMBus control is not used. Jumpers JU1-JU4 can be used to provide a presence-detect function for the respective channel if PCI Express cards are not used. Momentary pushbutton switches SW1-SW4 are provided to demonstrate the MAX5960L debounced logic gate outputs. The MAX5960L EV kit features green LEDs connected to each channel's 12V, 3.3V, and 3.3V auxiliary output that indicate if the respective output is currently powered. Red test points for the 12V and 3.3V outputs, various PCI Express signals, and other circuit signals such as the gate drive of each MOSFET have been provided for probing on the EV kit board. All the EV kit's black test points are GND points. The EV kit also features PCB pads for installing external resistors and capacitors near each MOSFET gate terminal to increase the MOSFET's gate-turn-on time. Surface-mount 0805 case-size components can be installed at these locations. See Figure 4 for each of the MOSFET's gate R and C designators. The EV kit can be reconfigured for evaluating a x1, x4, or x8 PCI Express quad hot-plug design by replacing the appropriate current-sense resistor, R32, R34, R47, or R48. Consult the appropriate PCI Express specification in the MAX5960L IC data sheet for selecting other designs. PCB pads are provided to demonstrate the MAX5960L hot-plug features without using the PCI Express x16 connectors. _______________________________________________________________________________________ 5 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L 9) Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System For evaluating external DC loads, the cables connecting the 12V and 3.3V outputs to the external DC load must be rated for at least 10A and be shorter than 12in. Additionally, all current-sense resistors are configured for the maximum allowable output current on the 12V and 3.3V outputs. These resistors should be reconfigured only for lower output currents. The MAX5960L EV kit features three MAX7313 16-port I/O expanders (U2, U3, U4) and PCB pads for interfacing to a user's SMBus system. Resistors configure each MAX7313 to a fixed SMBus serial address. The address of U2 is 0x40, U3 is 0x42, and U4 is 0x44. The MAX7313 can also be used to enable/disable each channel's main output and auxiliary output independently. See the MAX7313 Input/Output Expanders and SMBus Interface section for more details. Jumper and Switch Selection The jumper and switch selections in the following tables display the functions provided by the MAX5960L EV kit. Presence-Detect Channels A, B, C, and D The MAX5960L EV kit features four jumpers that can simulate a PCI Express x16 card being plugged into a connector. Jumpers JU1, JU2, JU3, and/or JU4 are used to provide a presence-detect function for the respective channel. An external load (resistive and capacitive) must be connected to the channel's output PCB pads simulating a real PCI Express card. Table 1 lists the various jumper options. Channel A Enable/Disable Switches The MAX5960L EV kit features two switches to enable/disable the 12V/3.3V main and 3.3V auxiliary channel A outputs. The switches can also be used to reset a channel that has latched off after a fault has occurred. Table 2 lists the various switch options. Channel B Enable/Disable Switches The MAX5960L EV kit features two switches to enable/disable the 12V/3.3V main and 3.3V auxiliary channel B outputs. The switches can also be used to reset a channel that has latched off after a fault has occurred. Table 3 lists the various switch options. Table 1. Channel A, B, C, and D Presence-Detection Functions JUMPER JU3 JU4 JU2 JU1 SHUNT MAX5960L PIN CONNECTION EV KIT OPERATION SIMULATED Installed PRES-DETA pin pulled low PCI Express card inserted in channel A None* PRES-DETA pin pulled high No PCI Express card in channel A Installed PRES-DETB pin pulled Low PCI Express card inserted in channel B None* PRES-DETB pin pulled high No PCI Express card in channel B Installed PRES-DETC pin pulled low PCI Express card inserted in channel C None* PRES-DETC pin pulled high No PCI Express card in channel C Installed PRES-DETD pin pulled low PCI Express card inserted in channel D None* PRES-DETD pin pulled high No PCI Express card in channel D *When using a real PCI Express card, these jumper shunts must be removed so that the card has control of the presence detection. Table 2. Channel A Switch Functions SWITCH SW5 SW6 6 SWITCH STATE MAX5960L PIN CONNECTION MAX5960L OPERATION ON ONA pin pulled high Enable channel A main outputs OFF ONA pin pulled low Disable channel A main outputs ON AUXONA pin pulled high Enable channel A 3.3V auxiliary output OFF AUXONA pin pulled low Disable channel A 3.3V auxiliary output _______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System Channel D Enable/Disable Switches The MAX5960L EV kit features two switches to enable/disable the 12V/3.3V main and 3.3V auxiliary channel D outputs. The switches can also be used to reset a channel that has latched off after a fault has occurred. Table 5 lists the various switch options. Control Methods, Other Configurations, and I/O Expander Fault Resetting The MAX5960L EV kit features slide switches to reset a latched fault at each channel. The switch resets the respective EV kit channel and unlatches the fault when toggled from ON to OFF. See Tables 2 through 5 for resetting the respective channel. Refer to the MAX5960L IC data sheet for additional functions of the MAX5960L ON_ pins. Fault Timeout and POR Periods The MAX5960L fault timeout period is configured for 10ms and can be reconfigured to a new timeout period by installing surface-mount resistor R17. The MAX5960L POR timeout period is configured for 160ms; however, a new POR timeout period can be reconfigured by installing surface-mount resistor R18. Install a 0 resistor at R18 to bypass the POR time period delay. Refer to MAX5960L IC data sheet Power-Good (PWRGD_) section for selecting the values of resistors R17 or R18. Table 3. Channel B Switch Functions SWITCH SW7 SW8 SWITCH STATE MAX5960L PIN CONNECTION MAX5960L OPERATION ON ONB pin pulled high OFF ONB pin pulled low Enable channel B main outputs Disable channel B main outputs ON AUXONB pin pulled high Enable channel B 3.3V auxiliary output OFF AUXONB pin pulled low Disable channel B 3.3V auxiliary output Table 4. Channel C Switch Functions SWITCH SW9 SW10 SWITCH STATE ON MAX5960L PIN CONNECTION ONC pin pulled high MAX5960L OPERATION Enable channel C main outputs OFF ONC pin pulled low Disable channel C main outputs ON AUXONC pin pulled high Enable channel C 3.3V auxiliary output OFF AUXONC pin pulled low Disable channel C 3.3V auxiliary output Table 5. Channel D Switch Functions SWITCH SW11 SW12 SWITCH STATE MAX5960L PIN CONNECTION MAX5960L OPERATION ON OND pin pulled high Enable channel D main outputs OFF OND pin pulled low Disable channel D main outputs ON AUXOND pin pulled high Enable channel D 3.3V auxiliary output OFF AUXOND pin pulled low Disable channel D 3.3V auxiliary output _______________________________________________________________________________________ 7 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L Channel C Enable/Disable Switches The MAX5960L EV kit features two switches to enable/disable the 12V/3.3V main and 3.3V auxiliary channel C outputs. The switches can also be used to reset a channel that has latched off after a fault has occurred. Table 4 lists the various switch options. Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Forced ON Inputs Either channel PCI Express slot can be forced to turn on regardless of the MAX5960L logic status inputs. To force channel A on, install surface-mount resistor R9 or install the respective channel's resistor. Typical values are less than 1k. Additionally, the MAX5960L EV kit software can be used to force a channel on without installing the resistor. See the Software Startup section for more information. Current Limiting The MAX5960L EV kit is configured for PCI Express x16 current limits. The EV kit can also evaluate other current-limit configurations for the 12V and 3.3V main outputs of each channel. Resistors R32, R47, R34, and R48 set the 12V current-limit for channels A, B, C, and D, respectively. Resistors R39, R53, R40, and R54 set the 3.3V current limit for channels A, B, C, and D, respectively. These resistors should be reconfigured only for lower output currents. Refer to the MAX5960L IC data sheet for information on selecting other currentlimit resistors. The 3.3V auxiliary current limit is fixed at 700mA (typ) and is not reconfigurable. However, a MAX5959L can be installed to evaluate an auxiliary current limit of 470mA (typ) with the EV kit. Evaluating Other Quad PCI Express Hot-Plug Controllers The MAX5960L EV kit can be used to evaluate the MAX5959A, MAX5959L, or MAX5960A. Replace U1 with the desired Maxim IC that can be ordered through the factory. 8 MAX7313 Input/Output Expanders and SMBus Interface The MAX5960L EV kit features three MAX7313 I/O expanders (U2, U3, U4) and PCB pads for connecting to an SMBus system (SDA and SCL signals). The I/O expander interfaces with the PRES-DET_, FAULT_, ON_, OUT_, PWRGD_, and FON_ signals of the MAX5960L for each channel. Headers J5-J8 (8 pins) are provided to enable easy access to the respective channel's signals through a ribbon cable or scope probe. Green and yellow LEDs (D14-D21) are also provided for user applications such as status indication. Jumpers JU9, JU10, JU15, and JU16 are provided to mimic a PCI Express mechanical retention locking (MRL) signal for the respective channel. Resistors configure each MAX7313 to a fixed SMBus serial address, where U2 is 0x40, U3 is 0x42, and U4 is 0x44. If the MAX7313 I/O expander is used to control the ON_ signals and read back various other MAX5960L signals of each channel, jumpers JU5-JU14 must be properly configured or the I/O expanders may be destroyed when switching logic states. See Table 6 for configuring jumpers JU5-JU14. Pads are provided on the EV kit's PCB for interfacing with a user's system SMBus VDD, SDA, SCL, and GND signals. If a user's SMBus system is not available, a Windowsbased computer can be interfaced with the EV kit by connecting the CMAXQUSB interface board to connector J9. The interface board enables the computer to interface with the EV kit's SMBus signals. The SMBus interface board and software provides the user with an option of using a Windows-based GUI interface or "bitbanging" signals to and from the MAX7313 I/O expander's various registers to control the MAX5960L IC. _______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L Table 6. MAX5960L Channels A, B, C, and D ON_ Signals Configuration JUMPER SHUNT LOCATION JU5 1 and 2 AUXONA controlled by SW6 MAX5960L PIN CONNECTION Local switch control EV KIT OPERATION JU6 1 and 2 ONA controlled by SW5 Local switch control JU7 1 and 2 ONB controlled by SW7 Local switch control JU8 1 and 2 AUXONB controlled by SW8 Local switch control JU11 1 and 2 AUXONC controlled by SW9 Local switch control JU12 1 and 2 ONC controlled by SW10 Local switch control JU13 1 and 2 OND controlled by SW11 Local switch control JU14 1 and 2 AUXOND controlled by SW12 Local switch control JU5 2 and 3 AUXONA controlled by U2, MAX7313 with SMBus SMBus or computer control JU6 2 and 3 ONA controlled by U2, MAX7313 with SMBus SMBus or computer control JU7 2 and 3 ONB controlled by U2, MAX7313 with SMBus SMBus or computer control JU8 2 and 3 AUXONB controlled by U2, MAX7313 with SMBus SMBus or computer control JU11 2 and 3 AUXONC controlled by U3, MAX7313 with SMBus SMBus or computer control JU12 2 and 3 ONC controlled by U3, MAX7313 with SMBus SMBus or computer control JU13 2 and 3 OND controlled by U3, MAX7313 with SMBus SMBus or computer control JU14 2 and 3 AUXOND controlled by U3, MAX7313 with SMBus SMBus or computer control Figure 1. The MAX5960L Evaluation Software Main Window for Reading Current EV Kit Status and Sending Commands _______________________________________________________________________________________ 9 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Detailed Description of Software A mouse or the keyboard's Tab key is used to navigate various items on the Main Window. Most of the main window's available functions and a few more can be evaluated by using the pulldown menu. The software features a demo mode that is available using the View|Demo Mode pulldown menu. Software Startup Upon starting the program, the MAX5960L EV kit software automatically detects U2, U3, and U4 addresses and configures their I/O. See Tables 7 and 8 for U2, U3, and U4 configuration by the software. The MAX5960L EV kit's various status signals are then updated by the program approximately every 500ms. Use the checkboxes to enable/disable various EV kit functions and then select the Execute Command button to send the commands to the respective I/O expander and/or U1. Deselecting a checkbox disables the command. To force a respective channel ON, select the respective channel's latching FORCE ON button. To turn OFF a forced ON channel, select the button again. When a respective channel is forced ON, that particular channel's controls are disabled until force ON is turned off. The software's Status area provides information on the various MAX5960L and PCI Express system signal's condition. Each MAX7313 I/O expander SMBus address is provided in hexadecimal and decimal format, respectively. The left bottom status bar of the main window provides the CMAXQUSB interface board communication status. The right bottom status bar provides the current program status and SMBus communication status with respect to the respective I/O expander. The MAX5960L EV kit software configures the CMAXQUSB interface board's SMBus communication speed to 400kHz by default. The speed can be reduced to 100kHz if required, by selecting the pulldown menu's View|2-Wire Speed|100kHz selection. This may be required if slower SMBus or 2-wire devices are connected to the bus on the EV kit. General-Purpose 2-Wire Interface Utility The general-purpose 2-wire interface utility can also be used to communicate with the MAX7313 and thus control or read back signals from the MAX7313 and/or MAX5960L. Use the View|Interface pulldown menu to access the utility. The utility configures the SMBus interface parameters such as start and stop bits, acknowledgments, and clock timing. The 2-wire interface screen allows you to send general-purpose SMBus commands using the SMBusWriteByte and SMBusReadByte. The interface utility only accepts and outputs hexadecimal number format. The Hunt for active listeners button scans the entire 2-wire address space, reporting each address that is acknowledged. The SMBusWriteByte transmits the device address, command, and 1 byte of data. The SMBusReadByte transmits the device address, a command, and then retransmits the device address and reads 1 byte of data. Table 7. MAX7313 I/O Port Configuration/Function for U2 and U3 MAX7313 PORT I/O PORT P7 (BIT D7) PORT P6 (BIT D6) PORT P5 (BIT D5) PORT P4 (BIT D4) PORT P3 (BIT D3) PORT P2 (BIT D2) PORT P1 (BIT D1) PORT P0 (BIT D0) PORT CONFIG OUTPUT OUTPUT INPUT INPUT OUTPUT OUTPUT INPUT INPUT EV KIT FUNCTION YELLOW LED GREEN LED PRES-DET FAULT AUXON ON OUT MRL Table 8. MAX7313 I/O Port Configuration/Function for U4 MAX7313 PORT I/O PORT P7 (BIT D7) PORT P6 (BIT D6) PORT P5 (BIT D5) PORT P4 (BIT D4) PORT P3 (BIT D3) PORT P2 (BIT D2) PORT P1 (BIT D1) PORT P0 (BIT D0) PORT CONFIG OUTPUT OUTPUT OUTPUT OUTPUT INPUT INPUT INPUT INPUT FOND FONC FONB FONA PWRGDD PWRGDC PWRGDB PWRGDA EV KIT FUNCTION 10 ______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System General Troubleshooting Problem: Software reports it cannot find the interface board. * Is the interface board power LED lit? * Is the USB communications cable connected? * Has Windows plug-and-play detected the board? Bring up Control Panel->System->Device Manager, and look at what device nodes are indicated for USB. If there is an "unknown device" node attached to the USB, delete it--this forces plugand-play to try again. Problem: Unable to find U2, U3, or U4 (MAX7313). * Is power applied to the MAX5960L EV kit VIN2 and VIN3 banana jacks? This is required for powering U2, U3, and U4. * Are the SCL and SDA signals pulled up to VDD? The CMAXQUSB interface board dip switch SW1 enables the on-board resistors on the interface board. There must be pullup resistors somewhere for the SMBus SCL and SDA signals. * If using jumper wires to connect, are the SCL and SDA signals swapped? Is the ground return missing? Figure 2. The 2-Wire Interface Window Provides Direct, Low-Level Access to the MAX5960L with the MAX7313 and SMBus 2-Wire Interface ______________________________________________________________________________________ 11 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L For information on the differences between a 2-wire and an SMBus interface, read Application Note: Comparing the I2C Bus to the SMBus at www.maxim-ic.com. +3.3VAUX 3.3AUXOB R3 10k C1 0.1F PWRGDB FAULTB C2 OPEN R2 10k 3.3AUXOA R4 10k 3.3GB PWRGDA R1 10k 3.3AUXOA +3.3VAUX +3.3VAUX 3.3SB- FAULTA 3.3SB+ +3.3V 3.3GA PGND 3.3SA- 12GB TP3 4 ONB SW1 5 1 ATTN1 6 OUT1 1 7 OUT2 8 OUT2 9 10 11 12 OND 13 AUXOND 14 62 3.3GA FAULTA 63 61 N.C. 64 3.3SA- 65 PGND 3.3AUXIN 66 PWRGDA 67 3.3AUXOA 68 3.3AUXOA 3.3AUXIN 3.3AUXIN 3.3AUXOB PWRGDB 3.3AUXOB 3.3GB 3.3SB- 69 3.3SA+ 12SA+ ONB AUXONA INPUT1 ONA OUTPUT1 INPUT3 INPUT2 U1 OUTPUT2 OUTPUT3 INPUT4 N.C. MAX5960L FOND OUTPUT4 FONA PRES-DETD PRES-DETA OND FONB AUXOND PRES-DETB GND 3.3SA+ +3.3V 60 59 12GA 58 +3.3VAUX 12SA- 57 12SA+ VIN1 56 R11 10k AUXONA 55 SW3 ONA 54 1 12SC- 12GD 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 GND TIM 37 38 39 52 1 OUT4 51 OUT4 50 R9 OPEN FONA 49 PRES-DETA 48 JU3 R10 OPEN FONB 47 46 3.3SD+ +3.3V 3.3SD- 45 44 3.3GD 43 12SD+ VIN1 42 12SD- 41 12GD VIN1 D1 40 3.3AUXOC FAULTC R13 10k C3 0.1F C4 OPEN 3.3AUXOD +3.3VAUX 3.3GC R17 OPEN R16 10k +3.3VAUX +3.3VAUX PWRGDC R14 10k FAULTD R15 10k 3.3AUXOC 3.3AUXOD PWRGDD TP11 TP12 TP13 TP14 TP15 TP16 TP17 TP18 Figure 3. MAX5960L EV Kit Schematic, Quad PCI Express Controller 12 3 ATTN4 INPUT4 C5 1F 3.3SC- TP8 SW4 OUT3 R18 OPEN PGND R12 10k OUT3 53 12GC 3.3SC+ +3.3V 3 ATTN3 INPUT3 12VIN 12SD- PORADJ 12SC+ FAULTD 20 12SC- 12SD+ PWRGDD 19 12SC+ VIN1 3.3GD AUXONC PGND AUXONC ONC 3.3AUXOD 18 3.3AUXOD ONC 3.3SD- 3.3AUXIN 17 3.3SD+ PRES-DETC 3.3AUXIN 16 PRES-DETC FONC 3.3AUXOC 15 +3.3VAUX TP7 PRES-DETB FONC 3.3AUXOC JU2 70 AUXONB FOND PRES-DETD R8 OPEN 71 3.3AUXIN ATTN2 JU1 72 OUT1 SW2 R7 OPEN 73 12GA PWRGDC TP5 74 12SA- FAULTC 3 75 12SB+ 3.3GC R6 10k 3 3 AUXONB 3.3SC- R5 10k 76 12SB- 3.3SC+ +3.3VAUX 2 77 FAULTB 1 12SB12SB+ VIN1 12GB +3.3VAUX 78 3.3SB+ 79 N.C. 80 12GC Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System ______________________________________________________________________________________ JU4 MAX5960L Evaluation Kit/ Evaluation System (12V) GND C10 1F 12VA TP20 12SA3 N1S N1 2 1 R30 1k TP21 8 7 12SA+ VIN1 R32 0.008 1% VIN1 VIN1 R33 750 12GA R31 OPEN 3.3VA TP26 3 N3 2 1 R37 150 8 7 C19 3300F 6.3V TP29 3.3SA+ +3.3V R39 0.005 1% 3.3GA C18 10F R38 OPEN GND R40 0.005 1% 7 8 4 R36 1k 12GC 12VC D3 C21 1F 3.3VC TP32 N4 3 GND N4S 1 2 6 5 R41 150 3.3GC 4 TP31 3.3AUXOA C17 OPEN N2S 1 2 3.3VC 3.3SC+ +3.3V 3.3SC- C34 1F GND +3.3V GND 3.3VAUXA TP33 3.3VAUXA 3 C14 OPEN 3.3SA- 5 6 TP27 4 3.3VA D4 N2 R35 OPEN +3.3V VIN2 TP28 +3.3V N3S 7 8 TP24 (3.3V) C13 1500F 16V C11 OPEN C16 1F R34 0.008 1% C15 1F 12VC TP25 12SC- 6 5 3.3VA GND TP23 12SC+ VIN1 5 6 4 12VA D2 GND C12 10F TP22 VIN1 R44 150 C20 OPEN R43 150k 3.3VAUXA D6 GND 12VD 3 N5 2 1 R45 1k TP35 8 7 R47 0.008 1% VIN1 12VB TP34 12SB+ VIN1 12SB- C23 1F N5S VIN1 +3.3VAUX VIN3 TP40 R46 OPEN C35 100F 6.3V TP41 +3.3V 3.3VB 3.3VB TP38 3 N7S 2 1 R51 150 R48 0.008 1% N7 8 7 7 8 N6 1 2 12VD D9 3.3SD- R54 0.005 1% 3.3VD 3.3VAUXB TP44 3.3GB C28 OPEN 3.3VAUXB 7 8 N8 3 C32 1F TP46 TP47 TP48 R57 150 3.3VAUXB D12 R55 OPEN C30 OPEN GND N8S 1 2 6 5 TP42 3.3AUXOB GND C31 1F 3.3VB TP43 R56 150 TP39 R52 OPEN R50 1k +3.3V 3.3SD+ +3.3V 4 3.3VB D10 12GD C25 OPEN 3.3SB 5 6 GND N6S R49 OPEN 3.3SB+ +3.3V R53 0.005 1% 3 4 TP36 C29 10F C26 1F 12VD TP37 12SD- 6 5 12GB C24 OPEN C27 1F 12SD+ VIN1 5 6 4 12VB D8 GND 3.3VAUXC C22 1F 3.3VC D7 12VB GND 3.3VAUXC TP30 3.3AUXOC 3.3VC D5 R42 OPEN 4 3.3GD 3.3VAUXD TP45 3.3VD D11 3.3VAUXOD R58 150 3.3VAUXD C33 1F GND 3.3VD D13 Figure 4. MAX5960L EV Kit Schematic, Quad PCI Express Hot Swap ______________________________________________________________________________________ 13 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L 12VC 12VA JU7 1 2 3 SW7 1 3 2 +3.3VAUX R78 51k ONB JU9 MRLB R76 10k +3.3VAUX +3.3VAUX ONB FOND FONC 12 11 10 9 8 7 FONA FONB 12 11 10 9 8 7 AUXONB 2 SW8 R79 51k 6 13 P10 P9 P8 GND P7 6 1 JU8 P6 P5 3 13 P10 P9 P8 GND P7 P6 +3.3VAUX R75 150 R74 150 PWRGDD 3 1 +3.3VAUX R77 3.3k YELLOW D15 OUT2 GREEN D14 +3.3VAUX PRES-DETA 2 5 14 5 14 R70 51k 4 U2 3 U4 3 AUXONB 16 15 R71 51k 16 2 17 2 17 AD1 AD2 AD1 AD2 R81 150 R80 150 18 R82 10k R83 10k A41 R84 10k J9-1 R93 10k 19 20 21 22 23 24 A40 SCL SDA PWRGDB PWRGDA PWRGDC GREEN YELLOW 19 20 21 SCL A42 R104 10k D17 C42 0.1F +3.3VAUX R103 10k +3.3VAUX +3.3VAUX JU13 J9-19 J9-17 J9-15 1 3 2 J9-16 J9-20 J9-18 J9-14 N.C. N.C. J9-12 J9-10 J9-8 J9-6 J9-4 J9-2 N.C. ALERTIN J9-13 SUSPENDOUT J9-9 SCL SDA J9-11 J9-7 J9-5 J9-3 2 SW11 R95 51k J9 FEMALE CONNECTOR 2 x 10 1 3 +3.3VAUX OND JU15 MRLD +3.3VAUX D16 C40 0.1F N.C. OND OUT4 12 11 10 9 8 7 R96 51k 6 3 13 P10 P9 P8 GND P7 P6 +3.3VAUX R92 150 R91 150 1 ALERTIN SUSPENDOUT SCL SDA VDD 2 14 5 15 2 U3 3 TP50 TP51 17 AD1 AD2 18 SCL SDA R98 150 2 1 JU12 GREEN SCL SDA 2 SW9 +3.3VAUX D21 D20 +3.3VAUX R99 10k C41 0.1F 3 +3.3VAUX ONC 1 +3.3VAUX +3.3VAUX 3 YELLOW 19 20 21 22 23 24 JU16 MRLC V+ R97 150 3 1 +3.3VAUX R90 10k INT/O16 1 TP53 TP54 GND SCL SDA VDD AUXOND 16 2 R111 3.3k R89 51k JU11 AUXONC 1 2 SW10 AUXONC +3.3VAUX 3 MAX7313 4 +3.3VAUX R88 51k AUXOND JU14 1 2 3 SW12 +3.3VAUX R94 3.3k YELLOW 22 D19 +3.3VAUX +3.3VAUX 23 3 1 +3.3VAUX GREEN SDA SW5 +3.3VAUX 2 ONA D18 R102 10k SCL SDA V+ INT/O16 1 18 SCL SDA V+ 1 JU6 +3.3VAUX 2 ONA 24 JU10 MRLA INT/O16 1 R73 10k 3 +3.3VAUX JU5 AUXONA 1 1 2 SW6 3 R72 3.3k MAX7313 4 15 2 P0 3 P0 AUXONA +3.3VAUX P3 MAX7313 P12 OUT1 P1 +3.3VAUX FAULTA P4 P12 FAULTB P4 P13 PRES-DETB P3 P13 P11 P5 P11 P2 P14 P2 P14 PRES-DETC P5 P11 FAULTC P4 P12 FAULTD P15 P1 P15 P3 P13 PRES-DETD AD0 P0 AD0 P2 P14 OUT3 P1 P15 14 AD0 ONC R100 10k R101 10k Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Figure 5. MAX5960L EV Kit Schematic, SMBus I/O Control ______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System N1S N3S 3.3AUXOA PRES-DETA PRES-DETA PRES-DETA PRES-DETA PRSNT1# +12V +12V GND JTAG2 JTAG3 JTAG4 JTAG5 +3.3V +3.3V PERST# GND REFCLK+ REFCLKGND PERP0 PERN0 GND RSVD GND PERP1 PERN1 GND GND PERP2 PERN2 GND GND PERP3 PERN3 GND RSVD RSVD GND PERP4 PERN4 GND GND PERP5 PERN5 GND GND PERP6 PERN6 GND GND PERP7 PERN7 GND RSVD GND PERP8 PERN8 GND GND PERP9 PERN9 GND GND PERP10 PERN10 GND GND PERP11 PERN11 GND GND PERP12 PERN12 GND GND PERP13 PERN13 GND GND PERP14 PERN14 GND GND PERP15 PERN15 GND +12V +12V +12V GND SMCLK SMDAT GND +3.3V JTAG1 3.3VAUX WAKE# RSVD GND PETP0 PETN0 GND PRSNT2# GND PETP1 PETN1 GND GND PETP2 PETN2 GND GND PETP3 PETN3 GND RSVD PRSNT2# GND PETP4 PETN4 GND GND PETP5 PETN5 GND GND PETP6 PETN6 GND GND PETP7 PETN7 GND PRSNT2# GND PETP8 PETN8 GND GND PETP9 PETN9 GND GND PETP10 PETN10 GND GND PETP11 PETN11 GND GND PETP12 PETN12 GND GND PETP13 PETN13 GND GND PETP14 PETN14 GND GND PETP15 PETN15 GND PRSNT2# RSVD Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L J2-A (CHANNEL B) J1-A (CHANNEL A) B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 B33 B34 B35 B36 B37 B38 B39 B40 B41 B42 B43 B44 B45 B46 B47 B48 B49 B50 B51 B52 B53 B54 B55 B56 B57 B58 B59 B60 B61 B62 B63 B64 B65 B66 B67 B68 B69 B70 B71 B72 B73 B74 B75 B76 B77 B78 B79 B80 B81 B82 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37 A38 A39 A40 A41 A42 A43 A44 A45 A46 A47 A48 A49 A50 A51 A52 A53 A54 A55 A56 A57 A58 A59 A60 A61 A62 A63 A64 A65 A66 A67 A68 A69 A70 A71 A72 A73 A74 A75 A76 A77 A78 A79 A80 A81 A82 N5S N1S N7S N3S 3.3AUXOB PERST#_J1 J6 (CHANNEL B) J5 (CHANNEL A) J5-1 PERST#_J1 J6-1 PERST#_J2 J5-2 PRES-DETA J6-2 PRES-DETB J5-3 ONA J6-3 ONB J5-4 AUXONA J6-4 AUXONB J5-5 FAULTA J6-5 FAULTB J5-6 OUT1 J6-6 OUT2 J5-7 PWRGDA J6-7 PWRGB J5-8 PRES-DETD J6-8 J1-B PRES-DETB PRES-DETB PRES-DETB B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 B33 B34 B35 B36 B37 B38 B39 B40 B41 B42 B43 B44 B45 B46 B47 B48 B49 B50 B51 B52 B53 B54 B55 B56 B57 B58 B59 B60 B61 B62 B63 B64 B65 B66 B67 B68 B69 B70 B71 B72 B73 B74 B75 B76 B77 B78 B79 B80 B81 B82 PRSNT1# +12V +12V GND JTAG2 JTAG3 JTAG4 JTAG5 +3.3V +3.3V PERST# GND REFCLK+ REFCLKGND PERP0 PERN0 GND RSVD GND PERP1 PERN1 GND GND PERP2 PERN2 GND GND PERP3 PERN3 GND RSVD RSVD GND PERP4 PERN4 GND GND PERP5 PERN5 GND GND PERP6 PERN6 GND GND PERP7 PERN7 GND RSVD GND PERP8 PERN8 GND GND PERP9 PERN9 GND GND PERP10 PERN10 GND GND PERP11 PERN11 GND GND PERP12 PERN12 GND GND PERP13 PERN13 GND GND PERP14 PERN14 GND GND PERP15 PERN15 GND +12V +12V +12V GND SMCLK SMDAT GND +3.3V JTAG1 3.3VAUX WAKE# RSVD GND PETP0 PETN0 GND PRSNT2# GND PETP1 PETN1 GND GND PETP2 PETN2 GND GND PETP3 PETN3 GND RSVD PRSNT2# GND PETP4 PETN4 GND GND PETP5 PETN5 GND GND PETP6 PETN6 GND GND PETP7 PETN7 GND PRSNT2# GND PETP8 PETN8 GND GND PETP9 PETN9 GND GND PETP10 PETN10 GND GND PETP11 PETN11 GND GND PETP12 PETN12 GND GND PETP13 PETN13 GND GND PETP14 PETN14 GND GND PETP15 PETN15 GND PRSNT2# RSVD A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37 A38 A39 A40 A41 A42 A43 A44 A45 A46 A47 A48 A49 A50 A51 A52 A53 A54 A55 A56 A57 A58 A59 A60 A61 A62 A63 A64 A65 A66 A67 A68 A69 A70 A71 A72 A73 A74 A75 A76 A77 A78 A79 A80 A81 A82 N5S N7S PERST#_J2 J2-B Figure 6. MAX5960L EV Kit Schematic, PCI Express x16 Channels A and B ______________________________________________________________________________________ 15 J4-A (CHANNEL D) J3-A (CHANNEL C) N2S N4S 3.3AUXOC PRES-DETC PRES-DETC PRSNT1# +12V +12V GND JTAG2 JTAG3 JTAG4 JTAG5 +3.3V +3.3V PERST# GND REFCLK+ REFCLKGND PERP0 PERN0 GND RSVD GND PERP1 PERN1 GND GND PERP2 PERN2 GND GND PERP3 PERN3 GND RSVD RSVD GND PERP4 PERN4 GND GND PERP5 PERN5 GND GND PERP6 PERN6 GND GND PERP7 PERN7 GND RSVD GND PERP8 PERN8 GND GND PERP9 PERN9 GND GND PERP10 PERN10 GND GND PERP11 PERN11 GND GND PERP12 PERN12 GND GND PERP13 PERN13 GND GND PERP14 PERN14 GND GND PERP15 PERN15 GND A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37 A38 A39 A40 A41 A42 A43 A44 A45 A46 A47 A48 A49 A50 A51 A52 A53 A54 A55 A56 A57 A58 A59 A60 A61 A62 A63 A64 A65 A66 A67 A68 A69 A70 A71 A72 A73 A74 A75 A76 A77 A78 A79 A80 A81 A82 N6S N2S N8S N4S 3.3AUXOD PERST#_J3 J8 (CHANNEL D) J7 (CHANNEL C) J7-1 PERST#_J3 J8-1 PERST#_J4 J7-2 PRES-DETC J8-2 PRES-DETD J7-3 ONC J8-3 OND J7-4 AUXONC J8-4 AUXOND J7-5 FAULTC J8-5 FAULTD J7-6 OUT3 J8-6 OUT4 J7-7 PWRGDC J8-7 PWRGDD J7-8 PRES-DETD J8-8 J3-B PRES-DETD PRES-DETD PRES-DETD B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 B33 B34 B35 B36 B37 B38 B39 B40 B41 B42 B43 B44 B45 B46 B47 B48 B49 B50 B51 B52 B53 B54 B55 B56 B57 B58 B59 B60 B61 B62 B63 B64 B65 B66 B67 B68 B69 B70 B71 B72 B73 B74 B75 B76 B77 B78 B79 B80 B81 B82 +12V +12V +12V GND SMCLK SMDAT GND +3.3V JTAG1 3.3VAUX WAKE# RSVD GND PETP0 PETN0 GND PRSNT2# GND PETP1 PETN1 GND GND PETP2 PETN2 GND GND PETP3 PETN3 GND RSVD PRSNT2# GND PETP4 PETN4 GND GND PETP5 PETN5 GND GND PETP6 PETN6 GND GND PETP7 PETN7 GND PRSNT2# GND PETP8 PETN8 GND GND PETP9 PETN9 GND GND PETP10 PETN10 GND GND PETP11 PETN11 GND GND PETP12 PETN12 GND GND PETP13 PETN13 GND GND PETP14 PETN14 GND GND PETP15 PETN15 GND PRSNT2# RSVD PCI-16EX PCI-16EX PRES-DETC +12V +12V +12V GND SMCLK SMDAT GND +3.3V JTAG1 3.3VAUX WAKE# RSVD GND PETP0 PETN0 GND PRSNT2# GND PETP1 PETN1 GND GND PETP2 PETN2 GND GND PETP3 PETN3 GND RSVD PRSNT2# GND PETP4 PETN4 GND GND PETP5 PETN5 GND GND PETP6 PETN6 GND GND PETP7 PETN7 GND PRSNT2# GND PETP8 PETN8 GND GND PETP9 PETN9 GND GND PETP10 PETN10 GND GND PETP11 PETN11 GND GND PETP12 PETN12 GND GND PETP13 PETN13 GND GND PETP14 PETN14 GND GND PETP15 PETN15 GND PRSNT2# RSVD PCI-16EX PRES-DETC B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 B33 B34 B35 B36 B37 B38 B39 B40 B41 B42 B43 B44 B45 B46 B47 B48 B49 B50 B51 B52 B53 B54 B55 B56 B57 B58 B59 B60 B61 B62 B63 B64 B65 B66 B67 B68 B69 B70 B71 B72 B73 B74 B75 B76 B77 B78 B79 B80 B81 B82 PCI-16EX Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System PRSNT1# +12V +12V GND JTAG2 JTAG3 JTAG4 JTAG5 +3.3V +3.3V PERST# GND REFCLK+ REFCLKGND PERP0 PERN0 GND RSVD GND PERP1 PERN1 GND GND PERP2 PERN2 GND GND PERP3 PERN3 GND RSVD RSVD GND PERP4 PERN4 GND GND PERP5 PERN5 GND GND PERP6 PERN6 GND GND PERP7 PERN7 GND RSVD GND PERP8 PERN8 GND GND PERP9 PERN9 GND GND PERP10 PERN10 GND GND PERP11 PERN11 GND GND PERP12 PERN12 GND GND PERP13 PERN13 GND GND PERP14 PERN14 GND GND PERP15 PERN15 GND J4-B Figure 7. MAX5960L EV Kit Schematic, PCI Express x16 Channels C and D 16 ______________________________________________________________________________________ A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37 A38 A39 A40 A41 A42 A43 A44 A45 A46 A47 A48 A49 A50 A51 A52 A53 A54 A55 A56 A57 A58 A59 A60 A61 A62 A63 A64 A65 A66 A67 A68 A69 A70 A71 A72 A73 A74 A75 A76 A77 A78 A79 A80 A81 A82 N6S N8S PERST#_J4 MAX5960L Evaluation Kit/ Evaluation System Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L Figure 8. MAX5960L EV Kit Component Placement Guide--Component Side ______________________________________________________________________________________ 17 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Figure 9. MAX5960L EV Kit PCB Layout--Component Side 18 ______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L Figure 10. MAX5960L EV Kit PCB Layout--Inner Layer, Ground Plane Layer 2 ______________________________________________________________________________________ 19 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Figure 11. MAX5960L EV Kit PCB Layout--Inner Layer, Power Plane Layer 3 20 ______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L Figure 12. MAX5960L EV Kit PCB Layout--Inner Layer, Ground Plane Layer 4 ______________________________________________________________________________________ 21 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Figure 13. MAX5960L EV Kit PCB Layout--Inner Layer, Signal Layer 5 22 ______________________________________________________________________________________ MAX5960L Evaluation Kit/ Evaluation System Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L Figure 14. MAX5960L EV Kit PCB Layout--Solder Side ______________________________________________________________________________________ 23 Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L MAX5960L Evaluation Kit/ Evaluation System Figure 15. MAX5960L EV Kit Component Placement Guide--Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 24 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2007 Maxim Integrated Products Janet Freed is a registered trademark of Maxim Integrated Products. Inc.