W83977EF Winbond Electronics Corp America, W83977EF Datasheet - Page 108

• Manufacturer Part Number: W83977EF
• Description: Description = W83877TF Plus Kbc, GP I/O, Wake-Up, Power Fail Resume ;; Package = QFP 128
• Manufacturer: Winbond Electronics Corp America

CRE1 (GP11, Default 0x01)
Bit 0: In/Out selection.
Bit 7 - 5: Reserved.
Bit 4: IRQ Filter Select
Bit 3: Select Function.
Bit 2: Reserved.
Bit 1: Polarity.
Bit 0: In/Out selection.
= 1 Input.
= 0 Output.
= 1 Debounce Filter Enabled
= 0 Debounce Filter Bypassed
= 1 Select Alternate Function: Interrupt Steering.
= 0 Select Basic I/O Function.
= 1 Invert.
= 0 No Invert.
= 1 Input.
= 0 Output.
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Publication Release Date: April 2003
W83977EF
Revision 1.1