Specifications

61
IDE-/AT-Bus Interface
This is a coded 2-row 44-pin male connector on the board. Up to two IDE-/AT-
Bus hard disk drives and/or IDE-/AT-bus CD-ROM drives can be connected via
a flat ribbon cable. Signals with # symbol are low active.
Pin Signal Pin Signal Pin Signal Pin Signal
1 RESET# 2 GND 23 IOW# 24 GND
3 D7 4 D8 25 IOR# 26 GND
5 D6 6 D9 27 N.C./IOCHRDY 28 BALE
7 D5 8 D10 29 N.C. 30 GND
9 D4 10 D11 31 IDINIT 32 IOCS16
11 D3 12 D12 33 SA1 34 N.C./MEMCS16#
13 D2 14 D13 35 SA0 36 SA2
15 D1 16 D14 37 CS# 38 HCS1#
17 D0 18 D15 39 HDLED 40 N.C.
19 GND 20 (coded) 41 VCC 42 VCC
21 N.C. 22 GND 43 GND 44 N.C.
Figure 26 , IDE-/AT-Bus
Table 19, IDE-/AT-Bus Pin Assignment
4.5
IDE-/AT-Bus
2 1