
21
Chapter 2
HARDWARE INSTALLATION
User's Manual |
WL9A3
GPIO Signals Descriptions
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
WL9A3
Carrier Board
Description
GPO0
A93
O CMOS
3.3V / 3.3V
General purpose output pins.
GPO1
B54
GPO2
B57
GPO3
B63
GPI0
A54
I CMOS
PU 100K to 3V3
General purpose input pins.
GPI1
A63
GPI2
A67
GPI3
A85
Power and GND Signal Descriptions
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
WL9A3
Carrier Board
Description
VCC_12V
A104~A109
B104~B109
Power
4.75V – 20.0V
12V – 20V
Primary power input: +12V nominal. All available VCC_12V pins on
the connector(s) shall be used. The module supplies a wide range
of power from 4.75V to 20.0V.
VCC_5V_SBY
B84~B87
Power
4.75V - 5.25V
4.75V - 5.25V
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.
VCC_RTC
A47
Power
2.0V - 3.3V
2.0V - 3.3V
Real-time clock circuit-power input. Nom3.0V.
GND
Pin Type: Power; Pin#: 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
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.