１１１
Signal
Pin# Description
I/O
Note
LID#
A103 LID switch.
Low active signal used by the ACPI operating
system for a LID switch.
Carrier Board:
R2/R3 Module only - Connect to LID button.
N/C if not used.
I 3.3V
CMOS
OD
SLEEP#
B103 Sleep button.
Low active signal used by the ACPI operating
system to bring the system to sleep state or to
wake it up again.
Carrier Board:
R2/R3 Module only - Connect to Sleep button.
N/C if not used
I 3.3V
CMOS
OD
FAN_PWMOUT B101 Fan speed control. Uses the Pulse Width
Modulation (PWM) technique to control the fan’s
RPM.
Carrier Board:
R2/R3 Module only - PD 4.7KΩ to GND and
connects to FAN connector pin 2 PWMOUT via
Smart FAN circuit
N/C if not used
O 3.3V
CMOS
OD
FAN_TACHIN
B102 Fan tachometer input for a fan with a two pulse
output.
Carrier Board:
R2/R3 Module only - Connect to FAN connector
pin 3 TACHIN via Smart FAN circuit
N/C if not used
I 3.3V
CMOS
OD
TPM_PP
A96
Trusted Platform Module (TPM) Physical
Presence pin.
Active high. TPM chip has an internal pull down.
This signal is used to indicate Physical
Presence to the TPM.
Carrier Board:
Physical Absence - N/C
Physical Presence - PU 1KΩ to 3.3V
N/C if not used
I 3.3V
CMOS
