User Guide • SC4-CONCERTO • CompactPCI
®
Serial CPU Board
GPIO Usage CM238 PCH
GPIO
USAGE
DIR
Function
Description
Group D (GPP_D)
D0
GPIO
IN
CPCI_PWR_FAIL#
Sense
CompactPCI
Serial Power Failure, P1 Pin F3
D1
GPIO
IN
PM_MEMTS#
Memory Thermal Sensor Event
D2
GPIO
IN
HM_INT#
Hardware Monitor NCT7491 Alert Line
D3-D8
GPIO
IN
N/A
Not connected on SC4
D9
GPIO
IN
GP_JUMP#
Reset UEFI/BIOS Setup to Factory Defaults, Jumper J-GP
D10
GPIO
IN
CPCI_SYSEN#
Sense CompactPCI Serial System Slot Enable, P1 Pin L2
D11
GPIO
OUT
GP_LED_RED
General Purpose Red LED Control (via PLD)
D12-
D20
GPIO
IN
N/A
Not connected on SC4
D21
GPIO
OUT
SE_SYS_WP
General Purpose Serial EEPROM Write Protection
D22
GPIO
OUT
PPSM_EN
Connect IEEE 1588 PPS/PPM to J-GP and
CompactPCI
Serial P1
LO: Isolate PPS/PPM Signals
HI: Connect PPS/PPM to J-GP/P1
D23
GPIO
IN
N/A
Not connected on SC4
Group E (GPP_E)
E0
Native
IN
SATA#PCIE12
P-HSE1 HS Lanes 1/2 Configuration
LO: Configured as SATA
HI: Configured as PCIe
E1
Native
IN
SATA#PCIE12
Shorted to GPP_E0
E2
Native
IN
SATA#PCIE34
P-HSE1 HS Lanes 3/4 Configuration
LO: Configured as SATA
HI: Configured as PCIe
E3-E7
GPIO
IN
N/A
Not connected on SC4
E8
Native
OUT
SATALED#
Signal PCH SATA activity via green HD LED in Front Panel (to PLD)
E9
Native
IN
USB_FP_OC1#
USB Front Panel Right Port Overcurrent Detect
E10
Native
IN
USB_FP_OC2#
USB Front Panel Left Port Overcurrent Detect
E11
Native
IN
USB_HSE1_OC#
Overcurrent Detect on any P-HSE1 USB Port
E12
GPIO
IN
N/A
Not connected on SC4
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