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Configure and Install Your AT-GPIB/TNT
9
Configure the AT-GPIB/TNT DMA Channel
Change the jumper settings to match the DMA channel assigned to your board. You must set both
the DMA Acknowledge and DMA Request lines. By default, the AT-GPIB/TNT is configured to use
DMA channel 5.
If you do not know what resources were assigned to your AT-GPIB/TNT, click here to
Table 3.
AT-GPIB/TNT DMA Channel Settings
DMA Channel
DMA Jumpers
5, 6, or 7
(DMA 7 is shown)
No DMA Channel
DRQ5
DRQ7
D
A
CK7
DRQ6
D
A
CK6
D
A
CK5
IRQ
15
14
12
11
10
Used to
Select
IRQ
=
DRQ5
DRQ7
D
A
CK7
DRQ6
D
A
CK6
D
A
CK5
IRQ
15
14
12
11
10
Used to
Select
IRQ
=