6 <enhanced ide interface – COMMELL P4LA User Manual

Page 19

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P4LA User’s Manual Hardware Setup

Enhanced IDE Interface

19

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

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