VIA Technologies, Inc.

Preliminary VT83C469

8

Register Set

The following is a list of VT83C469 registers and their offset values. The General Registers, Interrupt Registers, I/O

Registers and Memory Registers are fully compatible with the Intel 82365SL. The other registers are unique to the

VT83C469.

00h

40h

Identification and Revision

01h

41h

Interface Status

02h

42h

Power Control

03h

43h

Interrupt and General Control

04h

44h

Card Status Change

05h

45h

Card Status Change Interrupt Configuration

06h

46h

Address Window Enable

07h

47h

I/O Control

08h

48h

I/O Address 0 Start Low Byte

09h

49h

I/O Address 0 Start High Byte

0Ah

4Ah

I/O Address 0 Stop Low Byte

0Bh

4Bh

I/O Address 0 Stop High Byte

0Ch

4Ch

I/O Address 1 Start Low Byte

0Dh

4Dh

I/O Address 1 Start High Byte

0Eh

4Eh

I/O Address 1 Stop Low Byte

0Fh

4Fh

I/O Address 1 Stop High Byte

10h

50h

System Memory Address 0 Mapping Start Low Byte

11h

51h

System Memory Address 0 Mapping Start High Byte

12h

52h

System Memory Address 0 Mapping Stop Low Byte

13h

53h

System Memory Address 0 Mapping Stop High Byte

14h

54h

Card Memory Offset Address 0 Low Byte

15h

55h

Card Memory Offset Address 0 High Byte

16h

56h

Misc Control 1

17h

57h

Reserved

18h

58h

System Memory Address 1 Mapping Start Low Byte

19h

59h

System Memory Address 1 Mapping Start High Byte

1Ah

5Ah

System Memory Address 1 Mapping Stop Low Byte

1Bh

5Bh

System Memory Address 1 Mapping Stop High Byte

1Ch

5Ch

Card Memory Offset Address 1 Low Byte

1Dh

5Dh

Card Memory Offset Address 1 High Byte

1Eh

5Eh

Misc Control 2

1Fh

5Fh

Chip Information

20h

60h

System Memory Address 2 Mapping Start Low Byte

21h

61h

System Memory Address 2 Mapping Start High Byte

22h

62h

System Memory Address 2 Mapping Stop Low Byte

23h

63h

System Memory Address 2 Mapping Stop High Byte

24h

64h

Card Memory Offset Address 2 Low Byte

25h

65h

Card Memory Offset Address 2 High Byte

26h

66h

ATA Mode Control

27h

67h

Reserved

28h

68h

System Memory Address 3 Mapping Start Low Byte

29h

69h

System Memory Address 3 Mapping Start High Byte