2.4.2 I/O Register Address
The ISO-C64 card occupies 8 consecutive PC I/O address. The following table
lists the registers and their locations.
ISO-C64 I/O Register Address
Address
D/O Channel
ISO-C64
Base+0
Channel 0~7
Write Only
Base+1
Channel 8~15
Write Only
Base+2
Channel 16~23
Write Only
Base+3
Channel 24~31
Write Only
Base+4
Channel 32~39
Write Only
Base+5
Channel 40~47
Write Only
Base+6
Channel 48~55
Write Only
Base+7
Channel 56~63
Write Only
Write
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Base+0
7 6 5 4 3 2 1 0
Base+1
15 14 13 12 11 10 9 8
Base+2
23 22 21 20 19 18 17 16
Base+3
31 30 29 28 27 26 25 24
Base+4
39 38 37 36 35 34 33 32
Base+5
47 46 45 44 43 42 41 40
Base+6
55 54 53 52 51 50 49 48
Base+7
63 62 61 60 59 58 57 56
ISO
-P32C32/P32S32W/P64/C64 User Manual (Ver.1.9, Oct. 2011, IMH-000-19)
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