PCI-1202/1602/180x Series Card
Multi-Function Boards
User Manual/ Ver. 4.8/ Mar. 2015/ PMH-0014-48/ Page: 54
6.3
The I/O Address Map
The plug&play BIOS will assign proper I/O address to each PEX-1202 and PCI-1202/1602/1800/1802
series card very well.
There are five BAR of I/O address used by this card and each section can be
assigned to an unused I/O space. The hardware I/O ports are described as follows:
Table 6-5:
Sec.
BAR
Offset
Name
Operation
Access
-
0
0h
PCI controller add-on mail box
W
32-bit
38h
PCI interrupt control register
R/W
32-bit
3Ch
(or 3Eh, 3Fh)
On board NV-RAM access control
register
R/W
32-bit
(8-bit)
6.4
1
00h
8254 timer0
R/W
8/16/32-bit
04h
8254 timer1
R/W
8/16/32-bit
08h
8254 timer2
R/W
8/16/32-bit
0Ch
8254 control
W
8/16/32-bit
6.5
2
00h
Control register
W
16/32-bit
00h
Status register
R
8/16/32-bit
04h
A/D software trigger
W
8/16/32-bit
6.6
3
00h
DI port
R
16-bit
00h
DO port
W
16-bit
04h
Read Card ID
R
4-bit
6.7
4
00h
A/D data port
R
16-bit
00h
D/A channel 1
W
16-bit
04h
D/A channel 2
W
16-bit
The driver name of these address are given as follows:
BAR1:
wAddrTimer
Save in wConfigSpace[Board][0]
BAR2:
wAddrCtrl
Save in wConfigSpace[Board][1]
BAR3:
wAddrDio
Save in wConfigSpace[Board][2]
BAR4:
wAddrAdda
Save in wConfigSpace[Board][3]