AMD SB600 - Manual (Page 197)

©2008 Advanced Micro Devices, Inc. IDE Controller (Device 20, Function 1)
AMD SB600 Register Reference Manual Proprietary Page 197
Address (hex) Name and Function
Compatibility Mode Native Mode (Offset) Read Function Write Function
1F1 Base Address 0 + 1 Error register Features register
1F2 Base Address 0 + 2 Sector Count Sector Count
1F3 Base Address 0 + 3 Sector Number Sector Number
1F4 Base Address 0 + 4 Cylinder Low Cylinder Low
1F5 Base Address 0 + 5 Cylinder High Cylinder High
1F6 Base Address 0 + 6 Drive/Head Drive/Head
1F7 Base Address 0 + 7 Status Command
IDE Control Block Registers
Primary
3F6 Base Address 1 + 2 Alternate Status Device Control