W83977EF Winbond Electronics Corp America, W83977EF Datasheet - Page 110
W83977EF
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
Datasheet
1.W83977EF.pdf
(150 pages)
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CRE6 (GP16, Default 0x01)
CRE7 (GP17, Default 0x01)
TABLE C
WDT_CTRL1* BIT[1]*
Bit 5: Reserved.
Bit 4 - 3: Select Function.
Bit 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
Bit 7 - 5: Reserved.
Bit 4 - 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 4 - 3: Select Function.
Bit 2: Reserved.
Bit 1: Polarity: 1: Invert, 0: No Invert
Bit 0: In/Out: 1: Input, 0: Output
= 01 Address decoder is 2-Byte boundary.
= 10 Address decoder is 4-Byte boundary.
= 11 Address decoder is 8-Byte boundary.
= 00 Select Basic I/O function.
= 01 General Purpose Write Strobe(Active Low when Bit 1 = 0).
= 10 8042 P12.
= 11 Reserved
= 00 Select Basic I/O function.
= 01 Select 1st alternate function: Watch Dog Timer Output.
= 1x Reserved
= 00 Select Basic I/O function.
= 01 Select 1st alternate function: Power LED output. Please refer to TABLE C
= 1x Reserved
1
0
WDT_CTRL0* BIT[3]
X
0
-104 -
WDT_CTRL1 BIT[0]
X
X
Publication Release Date: April 2003
1 Hertz Toggle pulse
Continuous high or low*
POWER LED STATE
W83977EF
Revision 1.1
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