Portwell ROBO-8120VG2R, User Manual, Page: 31 / 70

System Installation
ROBO-8120VG2R User’s Manual 3-9
// Select Count Mode (Minute or Second)
outp(0x002E, 0xF5);
outp(0x002F, (inp(0x002F) & 0xF7) | (
Count-mode Register & 0x08));
// Specify Time-out Value
outp(0x002E, 0xF6);
outp(0x002F,
Time-out Value Register );
// Disable WDT reset by keyboard/mouse interrupts
outp(0x002E, 0xF7);
outp(0x002F, 0x00);
// Exit Extended Function Mode
outp(0x002E, 0xAA);
Definitions of Variables:
Value of Count-mode Register :
1) 0x00 -- Count down in seconds (Bit3=0)
2) 0x08 -- Count down in minutes (Bit3=1)
Value of
Time-out Value Register :
1) 0x00 -- Time-out Disable
2) 0x01~0xFF -- Value for counting down
3.6 GPIO
The ROBO-8210VG2R 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.
3.6.1 Pin assignment
z
J15: GPIO header
PIN No. Signal Description PIN No. Signal Description
1
GPIO30 (From SUPER I/O)
2
GPIO34 (From SUPER I/O)
3
GPIO31 (From SUPER I/O)
4
GPIO35 (From SUPER I/O)
5 GPIO22
(From SUPER I/O)
6
GPIO36 (From SUPER I/O)
7
GPIO23 (From SUPER I/O)
8
GPIO37 (From SUPER I/O)
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.