Adaptec PCM-3420, PC/104 manual DMA DC1 DC2

10	Open	Close (JP4/IRQ10 also set close)
11 *	Close	Open (JP4/IRQ11 also set close)
12	Open	Open (JP4/IRQ12 also set close)

(* means default setting)

Jumper Block JP4 also needs to set to the same IRQ channel.

JP5 Set PCM-3420 DMA Channel :

This setting is valid only if DMA is enabled on JP6 (DT - data transfer mode). (Jumper Block JP3 must also be the same DMA channel)

DMA	DC1	DC2
0 *	Close	Close	(JP3/DMA0 also set close)
5	Open	Close	(JP3/DMA5 also set close)
6	Close	Open	(JP3/DMA6 also set close)
7	Open	Open	(JP3/DMA7 also set close)

(* means default setting)

JP5 Enable/Disable PCM-3420 Parity Checking :

1 4 PCM-3420 User's Manual