User guide

User Guide • PC1-GROOVE • Core

i7 CompactPCI

CPU Board

GPIO Usage

GPIO Usage PCH

PC1-GROOVE GPIO Usage PCH QM57

GPIO Type Tol. Function Description

GPIO 0 I 3.3V THRM_ALERT# Monitoring of processor PROCHOT#

GPIO 1 I 3.3V EXP_SMI# Expansion Interface SMI Request (J-EXP Pin 15)

GPIO 2 I 5V CPCI_INTP CompactPCI Interrupt Request Line INTP

GPIO 3 I 5V CPCI_ENUM# CompactPCI System Enumeration Line ENUM#

GPIO 4 I 5V CPCI_FAL# CompactPCI Power Failure Line FAL#

GPIO 5 I 5V CPCI_DEG# CompactPCI Power Degeneration Line DEG#

GPIO 6 O 3.3V CPCI_INTS_EN Connect SERIRQ to CompactPCI Line INTS

LOW: SERIRQ disconnected from INTS

HIGH: SERIRQ connected to INTS

GPIO 7 I 3.3V CPCI_SYSEN# Sense CompactPCI System Slot Enable Line SYSEN#

GPIO 8 O 3.3V N/A Not used on PC1 (left NC)

GPIO 9 I 3.3V USB_OC5# USB HSE Port #2 Overcurrent Detect

GPIO 10 I 3.3V USB_OC6# USB HSE Port #3 or #4 Overcurrent Detect

GPIO 11 I 3.3V GP_JUMP# Reset UEFI BIOS Setup to Factory Defaults, Jumper P-GP

GPIO 12 O 3.3V NC1_ENABLE Enable Ethernet Controller NC2

GPIO 13 I 3.3V HM_INT# Hardware Monitor LM87 Interrupt Line

GPIO 14 I 3.3V USB_OC7# USB Front Panel Upper Port Overcurrent Detect

GPIO 15 O 3.3V N/A Not used on PC1 (pulled via resistor to +3.3V)

GPIO 16 I 3.3V N/A Not used on PC1 (pulled via resistor to +3.3V)

GPIO 17 O 3.3V CPCI_CLKEN Enable CompactPCI Clock Buffer

GPIO 18 O 3.3V GP_LED_RED General Purpose LED Control (via PLD)

GPIO 19 O 3.3V PLD_SCL Local Option Reg Interface (within PLD)

GPIO 20 O 3.3V SE_SYS_WP General Purpose Serial EEPROM Write Protection

GPIO 21 O 3.3V PLD_SDA Local Option Reg Interface (within PLD)

GPIO 22 O 3.3V SCLOCK Serial GPIO Bus CLOCK (J2: SATA_SC)

GPIO 23 I 3.3V LPC_DRQEXP# Expansion Interface LPC DMA Request Line

GPIO 24 O 3.3V USB_POWEN1# USB Front Panel Upper Port Power Enable

GPIO 25 I 3.3V N/A Not used on PC1 (pulled via resistor to +3.3V)

GPIO 26 I 3.3V N/A Not used on PC1 (pulled via resistor to +3.3V)

GPIO 27 O 3.3V USB_POWEN2# USB Front Panel Lower Port Power Enable

GPIO 28 O 3.3V CPCI_SMB_EN Connect SMBus of CPCI IPMB/J-EXP to local SMBus

LOW: IPMB/J-EXP disconnected from SMBus

HIGH: IPMB/J-EXP connected to SMBus

GPIO 29 O 3.3V SLP_LAN# Multiplexed with SLP_LAN#

GPIO 30 I 3.3V SUS_PWR_DN_ACK Not used on PC1 (pulled via resistor to +3.3V)

GPIO 31 I 3.3V ACPRESENT Not used on PC1 (pulled via resistor to +3.3V)

GPIO 32 I/O 3.3V CLKRUN# Fixed to chipset internal function

GPIO 33 I 3.3V MFG_JUMP# Select Manufacturing Mode Jumper P-MFG