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Table 38 Power and GND Signal Descriptions
Signal
Pin #
Description
I/O PU/PD Comment
VCC_12V
A104-A109
B104-B109
C104-C109
D104-D109
Primary power input: +12V nominal. All available VCC_12V pins on the connector(s)
shall be used
P
VCC_5V_SBY B84-B87
Standby power input: +5.0V nominal. If VCC5_SBY is used, all available VCC_5V_SBY
pins on the connector(s) shall be used. Only used for standby and suspend functions.
May be left unconnected if these functions are not used in the system design
P
VCC_RTC
A47
Real-time clock circuit-power input. Nom3.0V.
P
GND
A1, A11, A21, A31,
A41, A51, A57, A60,
A66, A70, A80, A90,
A100, A110, B1, B11,
B21, B31, B41, B51,
B60, B70, B80, B90,
B100, B110
C1, C2, C5, C8, C11,
C14, C21, C31, C41,
C51, C60, C70,C73,
C76, C80, C84, C87,
C90, C93, C96, C100,
C103, C110, D1, D2,
D5, D8, D11, D14, D21,
D31, D41, D51, D60,
D67, D70, D73, D76,
D80, D84, D87, D90,
D93, D96, D100, D103,
D110
Ground - DC power and signal and AC signal return path
All available GND connector pins shall be used and tied to Carrier Board GND plane
P