w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 153

• Manufacturer Part Number: w83977atf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

CRE2 (GP32, Default 0x01)
CRE3 (GP33, Default 0x01)
CRE4 (GP34, Default 0x01)
CRE5 (GP35, Default 0x01)
CRE6 (GP36, Default 0x01)
CRE7 (GP37, Default 0x01)
Bit 7 - 4: Reserved.
Bit 3: Select Function.
Bit 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
Bit 7 - 4: Reserved.
Bit 3: Select Function.
Bit 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
Bit 7 - 4: Reserved.
Bit 3: Select Function.
Bit 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
Bit 7 - 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
Bit 7 - 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
Bit 7 - 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
= 1 Select Alternate Function: General Purpose Address Decode.
= 0 Select Basic I/O Function.
= 1 Select Alternate Function: General Purpose Address Decode.
= 0 Select Basic I/O Function.
= 1 Select Alternate Function: Watch Dog Timer output.
= 0 Select Basic I/O Function.
- 153 -
Publication Release Date:April 1998
W83977ATF
PRELIMINARY
Revision 0.52