ADLINK cExpress-BT2 - Manual (Page 25)

cExpress-BT2 Page 25
Signal Pin # Description I/O PU/PD Comment
LID# LID button. Low active signal used by the ACPI operating system for a LID
switch. I OD
3.3VSB PU 10k
3.3VSB Emulated on GPIO
(BIOS)
SLEEP# Sleep button. Low active signal used by the ACPI operating system to bring
the system to sleep state or to wake it up again. I OD
3.3VSB PU 10K
3.3VSB Emulated on GPIO
(BIOS)
3.3.18. Power and Ground
Signal Pin # Description I/O PU/PD Comment
VCC_12V A104-A109
B104-B109
Primary power input: +12V nominal (wide range 5 ~ 20V).
All available VCC_12V pins on the connector(s) shall be used.
P 5~20 V
VCC_5V_SBY B84-B87 Standby power input: +5.0V nominal. See section 7 “Electrical
Specifications“ for allowable input range. 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 5Vsb ±5%
VCC_RTC A47 Real-time clock circuit-power input. Nominally +3.0V. P
GND A1, A11, A21, A31, A41, A51,
A57, A66, A80, A90, A96, A100,
A110, B1, B11, B21,B31, B41,
B51, B60, B70, B80, B90, B100,
B110 Ground - DC power and signal and AC signal return path. P