System Installation
96M4321o User’s Manual
3-9
3.8 GPIO
The
96M4321o
provides 8 programmable input or output ports that can be
individually configured to perform a simple basic I/O function. Users can configure
each individual port to become an input or output port by programming register bit
of I/O Selection. To invert port value, the setting of Inversion Register has to be
made. Port values can be set to read or write through Data Register.
3.8.1 Pin
assignment
J46: General Purpose I/O Connector
PIN No.
Signal Description
1
General Purpose I/O Port 1 (GPIO10)
2
General Purpose I/O Port 1 (GPIO14)
3
General Purpose I/O Port 1 (GPIO11)
4
General Purpose I/O Port 1 (GPIO15)
5
General Purpose I/O Port 1 (GPIO12)
6
General Purpose I/O Port 1 (GPIO16)
7
General Purpose I/O Port 1 (GPIO13)
8
General Purpose I/O Port 1 (GPIO17)
9 Ground
10 +5V
All General Purpose I/O ports can only apply to standard TTL
±
5% signal level
(0V/5V), and each source sink capacity up to 12mA.
3.8.2
96M4321o
GPIO Programming Guide
There are 8 GPIO pins on
96M4321o
series. These GPIO pins are from
SUPER I/O (W83627EHG) GPIO pins, and can be programmed as Input or Output
direction.
J46 pin header is for 8 GPIO pins and its pin assignment as following :
J46_Pin1=GPIO1:from SUPER I/O_GPIO 10 with Ext. 4.7K PH
J46_Pin2=GPIO2:from SUPER I/O_GPIO 14 with Ext. 4.7K PH
J46_Pin3=GPIO3:from SUPER I/O_GPIO 11 with Ext. 4.7K PH
J46_Pin4=GPIO4:from SUPER I/O_GPIO 15 with Ext. 4.7K PH
J46_Pin6=GPIO5:from SUPER I/O_GPIO 12 with Ext. 4.7K PH
J46_Pin7=GPIO6:from SUPER I/O_GPIO 16 with Ext. 4.7K PH
J46_Pin8=GPIO7:from SUPER I/O_GPIO 13 with Ext. 4.7K PH
J46_Pin9=GPIO8:from SUPER I/O_GPIO17 with Ext. 4.7K PH
<<<<< Be careful Pin9=GND , Pin10=VCC >>>>>
