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Chapter 3 Installation
Page 20 STT8000A Product Manual
ATA-2 Interface pin assignments
The STT8000A provides a standard ATA-2 connector. The pin assignments for this
connector are listed in the following table for your reference.
Pin Assignment Description Source
1
RESET Reset Host
2
Gnd Ground N/A
3
DD7 Data Bus bit 7 Host/Device
4
DD8 Data Bus bit 8 Host/Device
5
DD6 Data Bus bit 66 Host/Device
6
DD9 Data Bus bit 9 Host/Device
7
DD5 Data Bus bit 6 Host/Device
8
DD10 Data Bus bit 10 Host/Device
9
DD4 Data Bus bit 4 Host/Device
10
DD11 Data Bus bit 11 Host/Device
11
DD3 Data Bus bit 3 Host/Device
12
DD12 Data Bus bit 12 Host/Device
13
DD2 Data Bus bit 2 Host/Device
14
DD13 Data Bus bit 13 Host/Device
15
DD1 Data Bus bit 1 Host/Device
16
DD14 Data Bus bit 14 Baby sitting
17
DD0 Data Bus bit 0 Baby sitting
18
DD15 Data Bus bit 15 Host/Device
19
GND Ground N/A
20
--- Key pin N/A
21
DMARQ DMA Request Device
22
GND Ground N/A
23
DIOW- I/O Write Host