Aaeon PCM-5895 Manual page 42

C o m p a c t B o a r d
14 GND
15 GND
16 GND
17 GND
18 DA2
19 DA1
20 DA0
21 D0
22 D1
23 D2
24 IO16#
25 GND
Note: There is a limitation when supports Compact Flash and a hard
disk drive on the same IDE channel. Below information is from AMD.
Frequently Asked Question - FAQ.179
Question: Can the AMD Geode™ LX DB800 development board support
Compact Flash and a hard disk drive on the same IDE channel?
Answer:
The AMD Geode™ LX DB800 development board has a Compact Flash
(CF) socket and a 40-pin IDE header on the motherboard. The IDE header
is typically used for a Hard Disk Drive (HDD) or some other IDE device. It is
possible to use a configuration containing a CF and HDD, with certain
restrictions and considerations.
An easy mistake is to have master and slave devices (HDD, CD-ROM, etc.)
on the cable and CF on the motherboard. This does not work because it
puts three devices on an interface architected for only two drives.
The cable should be carefully considered. It must connect PDIAG- between
the HDD and CF.
P C M - 5 8 9 5 R e v . B
39 CSEL#
40 NC
41 RESET#
42 IORDY
43 DREQ
44 DACK#
45 DASP#
46 PDIAG#
47 D8
48 D9
49 D10
50 GND
Chapter 2 Quick Installation Guide
2-29