Lyrion Series IDE Product Manual, Rev. E 23
4.0 Interface description
The drives use the industry-standard ATA (IDE) interface. It supports ATA programmed input/output (PIO)
modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–4.

4.1 Connector interface signals and connector pins

The following table summarizes the signals on the 40-way ZIF ATA interface connector.

Table 8: 40-way ZIF (IDE interface) connector signals

Pin number Signal Name Description
1 Reserved -
2 Reserved -
3 RESET- Hard Reset
4 GROUND Ground
5 DD07 Data bus bit 7
6 DD08 Data bus bit 8
7 DD06 Data bus bit 6
8 DD09 Data bus bit 9
9 DD05 Data bus bit 5
10 DD10 Data bus bit 10
11 D D04 Data bus bit 4
12 DD11 Data bus bit 11
13 DD03 Data bus bit 3
14 DD12 Data bus bit 12
15 DD02 Data bus bit 2
16 DD13 Data bus bit 13
17 DD01 Data bus bit 1
18 DD14 Data bus bit 14
19 DD00 Data bus bit 0
20 DD15 Data bus bit 15
21 GROUND Ground
22 DMARQ DMA request
23 GROUND Ground
24 DIOW- /
STOP
I/O Write to write to device registers or the data port
Stop during Ultra DMA burst
25 DIOR- /
HDMARDY- /
HSTROBE
I/O Read to read device registers or the data port
Flow control during Ultra DMA data-in burst
Data-out strobe signal for Ultra DMA data-out burst
26 GROUND Ground