IDE, FDD, Memory
Chapter:
Connectors
Beckhoff New Automation Technology
CB1050
page 27
3.3 IDE, FDD, Memory
3.3.1 IDE interface
To connect IDE devices you can plug a ribbon cable into each of the two available 40pin connectors.
Pinout IDE interface:
Description
Name
Pin
Name
Description
reset
PRST#
1
2
GND
ground
data bit 7
PDD7
3
4
PDD8
data bit 8
data bit 6
PDD6
5
6
PDD9
data bit 9
data bit 5
PDD5
7
8
PDD10
data bit 10
data bit 4
PDD4
9
10
PDD11
data bit 11
data bit 3
PDD3
11
12
PDD12
data bit 12
data bit 2
PDD2
13
14
PDD13
data bit 13
data bit 1
PDD1
15
16
PDD14
data bit 14
data bit 0
PDD0
17
18
PDD15
data bit 15
ground
GND
19
20
N/C
coded
DMA request signal
PDDREQ
21
22
GND
ground
write signal
PDIOW#
23
24
GND
ground
read signal
PDIOR#
25
26
GND
ground
ready signal
PDRDY
27
28
N/C
reserved
DMA acknowledge signal
PDDACK#
29
30
GND
ground
interrupt signal
PDIRQ
31
32
N/C
reserved
address bit 1
PDA1
33
34
PDMA66EN enable UDMA66
address bit 0
PDA0
35
36
PDA2
address bit 2
chip select signal 0
PDSC0#
37
38
PDCS1#
chip select signal 1
LED
PHDLED
39
40
GND
ground
