EKF SC1-ALLEGRO, User Manual

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User Guide • SC1-ALLEGRO •
CompactPCI ® Serial
CPU Board • Intel® i7-3xxx Processor
GPIO Usage QM77 PCH
GPIO Type Tol. Function Description
GPIO 34 O 3.3V EXP_SMB_EN Connect SMBus on J-EXP to local SMBus
LOW: J-EXP disconnected from SMBus
HIGH: J-EXP connected to SMBus
GPIO 35 I 3.3V CPCI_SMB_EN Connect SMBus on CPCI Serial to local SMBus
LOW: CPCI Backplane disconnected from SMBus
HIGH: CPCI Backplane connected to SMBus
GPIO36-37 I 3.3V N/A Not used on SC1 (pulled via resistor to GND)
GPIO 38 O 3.3V SGPIO_LOAD Serial GPIO Bus LOAD (P1 K3: SATA_SL)
GPIO 39 O 3.3V SGPIO_OUT Serial GPIO Bus DATAOUT (P1 H3: SATA_SDO)
GPIO 40 I 3.3V USB_OC1# USB Front Panel Right Port Overcurrent Detect
GPIO 41 O 3.3V ENABLE_NC3 Enable Ethernet Controller NC3
GPIO 42 O 3.3V ENABLE_NC4 Enable Ethernet Controller NC4
GPIO 43 I 3.3V USB_OC4# USB J-HSE Port 1 Overcurrent Detect
GPIO 44-47 I 3.3V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 48-49 I 3.3V N/A Not used on SC1 (pulled via resistor to GND)
GPIO 50 I 5V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 51 O 3.3V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 52 I 5V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 53 O 3.3V N/A Not used on SC1
GPIO 54 I 5V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 55 O 3.3V ENABLE_NC2 Enable Ethernet Controller NC2
GPIO 56 I 3.3V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 57 O 3.3V SPM_MODE2 JMB393 RAID Controller: Set Configuration
1)
GPIO 58 I 3.3V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 59 I 3.3V USB_OC0# USB Front Panel Right Port Overcurrent Detect
GPIO 60 I 3.3V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 61-62 O 3.3V N/A Not used on SC1
GPIO 63 O 3.3V N/A Multiplexed with chipset internal function
GPIO 64-67 I 3.3V BOARD_CFG Board Configuration Jumpers
GPIO68-71 I N/A N/A Not implemented in PCH QM57
GPIO 72 I 3.3V N/A Not used on SC1 (pulled via resistor to +3.3V)
GPIO 73 I 3.3V N/A Not used on SC1
GPIO 74-75 I 3.3V N/A Not used on SC1 (pulled via resistor to +3.3V)
1)
GPIOs 8 and 57 have been swapped in Rev. 1 of SC1. Shown is the assignment as in Rev. 1.
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