4 isolated digital input register, 5 clear irq register – ADLINK PCI-7258 User Manual
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18 • Registers
3.4 Isolated Digital Input Register
There are 2 isolated input channels on PCI-7258 card. The status of the 2
channels can be read from the isolated input register. Each bit corresponds
to each channel. A “1” means the input logic is high and “0” means the input
logic is low.
Address: BASE + 0x04
Attribute: Read
7
6
5
4
3
2
1
0
--- --- --- --- --- --- DI1
DI0
15
14
13
12
11
10
9
8
--- --- --- --- --- --- --- ---
DIx: isolated digital input channel x, x=0, 1
3.5 Clear
IRQ
register
The PCI-7258 has two interrupt sources for the digital input channels 0 and 1.
Writing anything to this register will clear the interrupt request.
Address: BASE + 0x08
Attribute: Write
7
6
5
4
3
2
1
0
--- --- --- --- --- --- --- ---
15
14
13
12
11
10
9
8
--- --- --- --- --- --- --- ---