Table A-15. Compaq SmartStation IDE Hard Drive Signal Connector
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Pin Signal Pin Signal
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1 Reset 21 Not connected
2 Ground 22 Ground
3 Data Bit 7 23 I/O Write Control *
4 Data Bit 8 24 Ground
5 Data Bit 6 25 I/O Read Control *
6 Data Bit 9 26 Ground
7 Data Bit 5 27 Not connected
8 Data Bit 10 28 Not connected
9 Data Bit 4 29 Not connected
10 Data Bit 11 30 Ground
11 Data Bit 3 31 Interrupt Request
12 Data Bit 12 32 16-Bit I/O Cycle *
13 Data Bit 2 33 System Address Bit 1
14 Data Bit 13 34 Not connected
15 Data Bit 1 35 System Address Bit 0
16 Data Bit 14 36 System Address Bit 2
17 Data Bit 0 37 Chip Select 0 *
18 Data Bit 15 38 Chip Select 1 *
19 Ground 39 Drive Activity LED
20 Key 40 Ground
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