User Guide CCM-BOOGIE • High Performance Core
TM
2 Duo 3U
CompactPCI
®
CPU Board
CCM-BOOGIE GPIO Usage ICH9
GPIO
Type
Tol.
Function
Description
© EKF -57- ekf.com
GPIO 28
O
3.3V
ETH_SWITCH
Ethernet Switching Line:
LOW: Ethernet Port #1 via Rear I/O
HIGH: Ethernet Port #1 via Front I/O
GPIO 29
I
3.3V
CPCI_12VOK
Comp12V Present
GPIO 30
I
3.3V
USB_OC6#
USB Port #6 Overcurrent Detect Line
GPIO 31
I
3.3V
USB_OC7#
USB Port #7 Overcurrent Detect Line
GPIO 32
I/O
3.3V
CLKRUN#
Fixed to chipset internal function
GPIO 33
O
3.3V
NC2_EN
Enable Ethernet Controller NC2
GPIO 34
I
3.3V
HWREV0
PCB Revision Code Bit 0:
GPIO 22/48/34 000
001
010 ...
100 ...
111
Revision
0
1
2
4
7
GPIO 35
OD
3.3V
SATACLKREQ#
Multiplexed to chipset internal function
GPIO 36-39
I
3.3V
BOARD_CFG
Board Configuration Jumpers
GPIO 40
I
3.3V
USB_OC2#
USB Front Panel Lower Port Overcurrent Detect
GPIO 41
I
3.3V
USB_J2_OC#
USB Rear I/O Port #1 or #2 Overcurrent Detect
GPIO 42
I
3.3V
USB_J2_OC#
USB Rear I/O Port #1 or #2 Overcurrent Detect
GPIO 43
I
3.3V
N/A
Not used on CCM (fixed via resistor to +3.3V)
GPIO 44
I
3.3V
USB_HSE_OC3#
USB High Speed Expansion J_HSE Port #3 Overcurrent Detect
GPIO 45
I
3.3V
USB_HSE_OC4#
USB J_HSE Port #4 Overcurrent Detect
GPIO 46
I
3.3V
USB_EXP_OC#
USB J_EXP Port #1 or #2 Overcurrent Detect
GPIO 47
I
3.3V
USB_EXP_OC#
USB J_EXP Port #1 or #2 Overcurrent Detect
GPIO 48
I
3.3V
HWREV1
PCB Revision Code Bit 1 (see GPIO 34)
GPIO 49
O
3.3V
N/A
Not used on CCM
GPIO 50
I
5V
CPCI_REQ1#
CompactPCI Bus Request Line CPCI_REQ1#
GPIO 51
O
3.3V
CPCI_GNT1#
CompactPCI Bus Grant Line CPCI_GNT1#
GPIO 52
I
5V
CPCI_REQ2#
CompactPCI Bus Request Line CPCI_REQ2#
GPIO 53
O
3.3V
CPCI_GNT2#
CompactPCI Bus Grant Line CPCI_GNT2#
GPIO 54
I
5V
CPCI_REQ3#
CompactPCI Bus Request Line CPCI_REQ3#
GPIO 55
O
3.3V
CPCI_GNT3#
CompactPCI Bus Grant Line CPCI_GNT3#
GPIO 56
I
3.3V
WDOGRST
Last Hardware Reset caused by watchdog
GPIO 57
I
3.3V
N/A
Not used on CCM (fixed via resistor to GND)
GPIO 58
O
3.3V
SPI_CS1#
Multiplexed to chipset internal function
GPIO 59
I
3.3V
USB_OC1#
USB Front Panel Upper Port Overcurrent Detect
GPIO 60
O
3.3V
N/A
Not used on CCM (fixed via resistor to +3.3V)
