IDE Interface
Chapter:
Connectors
Beckhoff New Automation Technology
CB3051
page 31
4.15 IDE Interface
The primary IDE interface is a standard IDC socket connector with a spacing of 2 mm. All commercial IDE
devices are supported but an adapter to connect may be necessary.
The required settings are made in the BIOS setup.
C
AUTION
Pins are not keyed! Please be sure to connect the cable properly, otherwise you risk damaging the IDE
interface, the CPU and the drive, voiding respective warranties.
Jumper settings: The board ships with pins 1 & 2 shorted. This is the "standard" mode which lets the IDE
device and the controller negotiate the optimal transfer mode automatically. This is the best setting in
most situations. However, in some cases the automatic detection results in PIO-mode transfer even
though the setup would allow for UDMA. In such cases, UDMA mode can be enforced by shorting pins 2
& 3.
C
AUTION
If you enforce UDMA mode in configurations which are not capable of running at that speed (e.g. due to
inappropriate or too long cable), you'll end up with I/O-errors and loss of data!
Pinout for primary IDE
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
reserved
DMA request signal
PDDREQ
21
22
GND
ground
write signal
PDIOW#
23
24
GND
ground
read signal
PDIOR#
25
26
GND
ground
Содержание CB3051
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