Intel SC5400LX User Manual
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Intel® Server Chassis SC5400 5U Kit TPS
68
Revision:
1.0
6.2.2
General Purpose Input/Output (GPIO)
The VSC7161* SAS Expander supports GPIO pins that are customizable. The following table
lists the GPIO pins with their assigned functions.
lists the GPIO pins with their assigned functions.
Table 55. VSC7161* SAS Expander GPIO Assignment
VSC7161
*
PIN Name
I/O
Type
Power
Well
Programming
Description
System Function
Reset
State
Initial
Value
Value
Connection
P0_0
O
3.3V
HDD0 Fault LED control
LED_DRV0_FLT_N
Pull up 4.7K to
3.3V
3.3V
P0_1
O
3.3V
HDD1 Fault LED control
LED_DRV1_FLT_N
Pull up 4.7K to
3.3V
3.3V
P0_2
O
3.3V
HDD2 Fault LED control
LED_DRV2_FLT_N
Pull up 4.7K to
3.3V
3.3V
P0_3
O
3.3V
HDD3 Fault LED control
LED_DRV3_FLT_N
Pull up 4.7K to
3.3V
3.3V
P0_4
O
3.3V
HDD4 Fault LED control
LED_DRV4_FLT_N
Pull up 4.7K to
3.3V
3.3V
P0_5
O
3.3V
HDD5 Fault LED control
LED_DRV5_FLT_N
Pull up 4.7K to
3.3V
3.3V
P0_6
O
3.3V
Test Point P0_6
TP_EP_P0_6
P0_7
O
3.3V
Test Point P0_7
TP_EP_P0_7
P0_8
O
3.3V
FLASH(U3B1) write protect
control
control
FM_ROM0_WP_N
Pull up 4.7K to
3.3V
3.3V
P0_9
O
3.3V
U3B2(not stuffed) write
protect control
protect control
FM_ROM1_WP_N
Pull up 4.7K to
3.3V
3.3V
P0_10
O
3.3V
FRU(U3E2) write protect
control
control
FM_FRU_WP
Pull up 4.7K to
3.3V
3.3V
P0_11
O
3.3V
Test Point P0_11
TP_EP_P0_11
P0_12
OI
3.3V
Test Point P0_12
TP_EP_P0_12
P0_13
OI
3.3V
Test Point P0_13
TP_EP_P0_13
P0_14
OI
3.3V
Test Point P0_14
TP_EP_P0_14
P0_15
OI
3.3V
Test Point P0_15
TP_EP_P0_15
P0_16
I
3.3V
IPMB Address allocation input
SMB_IPMB_ADDR
Pull up 4.7K to
3.3V
3.3V
P0_17
OI
3.3V
Test Point P0_17
TP_EP_P0_17
P0_18
O
3.3V
Test Point P0_18
TP_EP_P0_18
P0_19
OI
3.3V
Test Point P0_19
TP_EP_P0_19
P0_22
O
3.3V
Test Point P0_22
TP_EP_P0_22
P0_23
O
3.3V
Test Point P0_23
TP_EP_P0_23