Table 8: |
| ||
|
|
|
|
23 |
| GROUND | Ground |
|
|
|
|
24 |
| I/O Write to write to device registers or the data port | |
|
| STOP | Stop during Ultra DMA burst |
|
|
|
|
25 |
| I/O Read to read device registers or the data port | |
|
| Flow control during Ultra DMA | |
|
| HSTROBE | |
|
|
|
|
26 |
| GROUND | Ground |
|
|
|
|
27 |
| IORDY / | I/O Channel Ready during register access |
|
| Flow control during Ultra DMA | |
|
| DSTROBE | |
|
|
|
|
28 |
| GROUND | Ground |
|
|
|
|
29 |
| DMACK- | DMA Acknowledge |
|
|
|
|
30 |
| INTRQ | Interrupt Request |
|
|
|
|
31 |
| DA01 | Address bus bit 1 |
|
|
|
|
32 |
| PDIAG- | - |
|
|
|
|
33 |
| DA00 | Address bus bit 0 |
|
|
|
|
34 |
| DA02 | Address bus bit 2 |
|
|
|
|
35 |
| CS0- | Chip Select 0 |
|
|
|
|
36 |
| CS1- | Chip Select 1 |
|
|
|
|
37 |
| DASP- | Used to drive external LED when drive is accessed |
|
|
|
|
38 |
| 3.3V | Voltage input |
|
|
|
|
39 |
| 3.3V | Voltage input |
|
|
|
|
40 |
| Reserved | - |
|
|
|
|
24 | Lyrion Series IDE Product Manual, Rev. B |