6 <enhanced ide interface – COMMELL P4LA User Manual
Page 19
P4LA User’s Manual Hardware Setup
Enhanced IDE Interface
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2.6 <Enhanced IDE interface>
The Intel® ICH7R (south bridge chip) supports one enhanced IDE interface, dual channel
for two ATAPI devices with ATA100. Based on this function, P4LA has one 40-pin IDE
connector with jumper selectable for pin-20 +5V supported.
The board supports 32-pin
DiskOnChip 2000
. The onboard 32-pin socket, DOC, supports
DiskOnChip2000 single chip flash disk in 32-pin DIP JEDEC with jumper selectable address
on jumper JDOC.
Jumper: JDOC
Type: onboard 3-pin header
JDOC DiskOnChip
Address
1-2
D800h
2-3
D000h
Default setting
Jumper: JCFSEL
Type: onboard 3-pin header
JCFSEL
Compact Flash Address Setting
1-2 Master
2-3
Slave
Default setting
IDE1
JDOC
1
3
DOC
JCFSEL
3
1
JDOC