Gayle IDE Controller
The registers used by Gayle for controlling the IDE port (as implemented on the A600 & A1200) are listed below. All registers are 8-bit except Data, which is 16-bit.
| Address | Read Function | Write Function |
|---|---|---|
| DA0018 | Alternate Status | Device Control |
| DA001C | Drive Address | N/A |
| DA1004 | Error Register | Features |
| DA1008 | Sector Count | Sector Count |
| DA100C | Sector Number | Sector Number |
| DA1010 | Cylinder Low | Cylinder Low |
| DA1014 | Cylinder High | Cylinder High |
| DA1018 | Drive / Head | Drive / Head |
| DA101C | Status | Command |
| DA2000 | Data | Data |
