AT2550 User Guide
December 8, 2003
page 11 of 17
3.3.2 IDE CONNECTOR PHYSICAL ORIENTATION
The diagram below depicts connector orientation and location.
MS Jumper
Pin #1
J1 Header
2x25,
Key - pin 20
J1 Connector View
CS Jumper
3.3.3 IDE CONNECTOR PINOUT
The following table depicts the 44-pin, 2mm signal cable interface pin out.
PIN SIGNAL PIN SIGNAL
1 RESET-
2 GND
3 DATA7
4 DATA8
5 DATA6
6 DATA9
7 DATA5
8 DATA10
9 DATA4
10 DATA11
11 DATA3
12 DATA12
13 DATA2
14 DATA13
15 DATA1
16 DATA14
17 DATA0
18 DATA15
19
GND
20 KEY (NO PIN)
21 DRQ
22 GND
23 IOW-
24 GND
25 IOR-
26 GND
27 IOCHRDY
28 CSEL
29 DACK-
30 GND
31 IRQ
32 IOCS16-
33 ADDR1
34 PDIAG-
35 ADDR0
36 ADDR2
37 CS0-
38 CS1-
39 DASP-
40 GND
41 +5VOLTS
42 +5VOLTS
43 GND
44 RESERVED