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Bitfields for PicoPower Vesuvius V3-LS programmable ISA I/O address decoder

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Bit Description

31 - 18

reserved

17

ISA range decoder 6 read enable

16

ISA range decoder 6 write enable

15

ISA range decoder 6 type:
0 = memory
1 = I/O

14

ISA range decoder 5 read enable

13

ISA range decoder 5 write enable

12

ISA range decoder 5 type:
0 = memory
1 = I/O

11

ISA range decoder 4 read enable

10

ISA range decoder 4 write enable

9

ISA range decoder 4 type:
0 = memory
1 = I/O

8

ISA range decoder 3 read enable

7

ISA range decoder 3 write enable

6

ISA range decoder 3 type:
0 = memory
1 = I/O

5

ISA range decoder 2 read enable

4

ISA range decoder 2 write enable

3

ISA range decoder 2 type:
0 = memory
1 = I/O

2

ISA range decoder 1 read enable

1

ISA range decoder 1 write enable

0

ISA range decoder 1 type:
0 = memory
1 = I/O

See Also:

#00971