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Bitfields for EISA DMA Information

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Bit Description

2 - 0

DMA channel number

5 - 3

reserved (0)

6

shareable

7

more entries follow

9 - 8

reserved

11 - 10

DMA transfer size
00 = byte
01 = word
10 = dword
11 = word, but count in bytes

13 - 12

DMA timing
00 = ISA-compatible
01 = EISA type "A"
10 = EISA type "B"
11 = EISA type "C"/"F" (burst)

15 - 14

reserved (0)

See Also:

#01252