W83626F/W83626D/W83626G
LPC TO ISA BRIDGE SET
Table of Contents-
1.
2.
3.
4.
5.
GENERAL DESCRIPTION ......................................................................................................... 2
FEATURES................................................................................................................................. 2
BLOCK DIAGRAM OF W83626F/G............................................................................................ 3
PIN CONFIGURATION OF W83626F/G .................................................................................... 4
PIN DESCRIPTION..................................................................................................................... 5
5.1
W83626F/G PIN DESCRIPTION.................................................................................... 5
5.1.1 LPC Interface ...................................................................................................................5
5.1.2 ISA Interface Signals........................................................................................................6
5.1.3 K/B , GPIO AND 80h PCS# Function ...............................................................................9
5.1.4 Clock Buffer and Generator............................................................................................10
5.1.5 Power Signals ................................................................................................................10
5.1.6 Power-on strapping Signals............................................................................................10
6.
CONFIGURATION REGISTER................................................................................................. 11
6.1
6.2
6.3
1 Chip (Global) Control Register................................................................................... 11
Enable the following configuration registers by writing 26h to the location 4Eh twice. 11
CR03 (ROM Decoder Register, Default, 100011s0b) .................................................. 11
7.
8.
9.
PACKAGE DIMENSIONS 1 FOR W83626F (128-PIN PQFP)................................................. 22
PACKAGE DIMENSIONS 2 FOR W83626D (128-PIN LQFP)................................................. 22
REVISION HISTORY................................................................................................................ 23
Publication Release Date: May 25, 2005
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Revision A1