pc87307 National Semiconductor Corporation, pc87307 Datasheet - Page 41
pc87307
Manufacturer Part Number
pc87307
Description
Plug And Play Compatible And Pc97 Compliant Superi/o
Manufacturer
National Semiconductor Corporation
Datasheet
1.PC87307.pdf
(218 pages)
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2.11 CARD CONTROL REGISTER BITMAPS
0
7
1
1
1
1
0
7
7
7
GPIO Bank Select
0
6
1
1
1
1
0
6
6
6
GPIO17 or WDO Pin Select
General Purpose Scratch Bits
0
5
0
0
0
0
0
5
5
5
GPIO20 or IRSL1 Pin Select
0
Lock Scratch Bit
4
0
0
0
0
x
4
4
4
Chip ID
0
X-Bus Data Buffer (XDB) Select
3
0
0
1
1
0
3
3
3
GPIO21, IRSL2, ID2 or ISL0 Pin Select
Reserved
0
2
0
0
1
1
1
2
2
2
Chip ID
PC-AT or PS/2 Drive Mode Select
GPIO22 or POR Select
x
0
0
1
1
x
1
1
1
1
CSOUT or CS0 Select
x
0
0
1
1
0
0
0
0
0
Revision ID
SuperI/O Configuration 2
Reset
Required
BADDR1 and BADDR0
SuperI/O Configuration 1
Reset
Required
Reset
Required
Reset
Required
ZWS Enable
SID (In PC87307)
SID (In PC97307)
Index 22h
Index 21h
Register,
Index 20h
Index 20h
Register,
Register,
Register,
Configuration
41
0
0
x
0
7
0
7
7
7
0
0
x
1
6
0
6
6
6
KBC Clock Source
0
0
x
5
5
0
0
5
5
Read Only
0
0
x
0
4
0
4
4
4
0
x
0
0
3
3
3
3
Data in a Programmable
Chip Select Configuration
Register
0
x
0
2
0
2
Chip Revision ID
2
2
Reserved
0
x
0
0
1
1
1
1
Index of a Programmable
Chip Select Configuration
Register
0
x
0
0
0
0
0
0
Programmable Chip Select
Programmable Chip Select
Reset
Required
Reset
Required
Reset
Required
Reset
Required
SRID (in PC97307 only)
Configuration Index
Configuration Data
SuperI/O KBC
Configuration
www.national.com
Index F0h
Index 23h
Index 24h
Index 27h
Register,
Register,
Register,
Register,
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