Chapter 6 – XVME-973 Drive Adapter Module
6-6
Caution
The IDE controller supports enhanced PIO modes, which reduce the
cycle times for 16-bit data transfers to the hard drive. Check with your
drive manual to see if the drive you are using supports these modes. The
higher the PIO mode, the shorter the cycle time. As the IDE cable length
increases, this reduced cycle time can lead to erratic operation. As a
result, it is in your best interest to keep the IDE cable as short as
possible.
The PIO modes are selected in the BIOS setup (refer to Chapter 3). The
Autoconfig will attempt to classify the drive connected if the drive
supports the auto ID command. If you experience problems, change the
PIO to standard.
P5 Connector
P5 connects a single 3.5-inch floppy drive. Power for this drive is supplied by the
connector.
Pin
Signal
Pin
Signal
1
+5V
14
FSTEP*
2
IDX*
15
GND
3
+5V
16
FWD*
4
FDS1*
17
GND
5
+5V
18
FWE*
6
DCHG*
19
GND
7
NC
20
FTKO*
8
NC
21
GND
9
NC
22
FWP*
10
MO1*
23
GND
11
NC
24
FRDD*
12
FDIRC*
25
GND
13
NC
26
FHS*
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