Functional Description
MEN Mikro Elektronik GmbH
28
20A014-00 E2 – 2007-08-16
2.7
IDE Interface
The parallel IDE (PATA) interface handles the exchange of information between the
processor and peripheral devices such as hard disks, ATA CompactFlash cards and
CD-ROM drives.
The IDE interface is controlled by the FPGA and supports up to two ATA devices in
PIO mode 0. One device acts as a master, the other as a slave.
2.7.1
Connection
You can connect one or two devices to the standard 44-pin connector. MEN offers a
suitable adapter cable for two devices. For ordering options, please see MEN’s
website
.
The 44-pin IDE connector is located at the top side of A14C. The pinning of the
IDE connector complies with the ATA-4/ATAPI specification.
Connector types:
• 44-pin, 2-row plug, 2mm pitch
• Mating connector:
44-pin, 2-row receptacle, 2mm pitch
Table 1.
Pin assignment of 44-pin IDE plug connector
1
IDE_RST#
2
GND
3
IDE_D[7]
4
IDE_D[8]
5
IDE_D[6]
6
IDE_D[9]
7
IDE_D[5]
8
IDE_D[10]
9
IDE_D[4]
10
IDE_D[11]
11
IDE_D[3]
12
IDE_D[12]
13
IDE_D[2]
14
IDE_D[13]
15
IDE_D[1]
16
IDE_D[14]
17
IDE_D[0]
18
IDE_D[15]
19
GND
20
-
21
-
22
GND
23
IDE_WR#
24
GND
25
IDE_RD#
26
GND
27
IDE_RDY
28
-
29
-
30
GND
31
IDE_IRQ
32
-
33
IDE_A[1]
34
GND
35
IDE_A[0]
36
IDE_A[2]
37
IDE_CS1#
38
IDE_CS3#
39
-
40
GND
41
+5V
42
+5V
43
GND
44
GND
1
2
43
44
