w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 155

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

CRE6 (GP16, Default 0x01)
CRE7 (GP17, Default 0x01)
TABLE C
*Note: 1). Regarding to the contents of WDT_CTR1 and WDT_CTRL0, please refer to CRF3 and CRF4 in Logic Device 8.
Bit 2
Bit 1
Bit 0
Bit 7 - 5
Bit 4 - 3
Bit 2
Bit 1
Bit 0
Bit 7 - 4
Bit 4 - 3
Bit 2
Bit 1
Bit 0
WDT_CTRL1* BIT[1]*
2). Continuous high or low depends on the polarity bit of GP13 or GP17 configure registers.
1
0
0
0
= 01
= 10
= 11
: Reserved.
: Polarity: 1: Invert, 0: No Invert
: In/Out: 1: Input, 0: Output
: Reserved.
: Select Function.
= 00
= 01
= 1x
: Reserved.
: Polarity: 1: Invert, 0: No Invert
: In/Out: 1: Input, 0: Output
: Reserved.
: Select Function.
= 00
= 01
= 1x
: Reserved.
: Polarity: 1: Invert, 0: No Invert
: In/Out: 1: Input, 0: Output
General Purpose Write Strobe (Active Low when Bit 1 = 0).
8042 P12.
Reserved
Select Basic I/O function.
Select 1st alternate function: Watch Dog Timer Output.
Reserved
Select Basic I/O function.
Select 1st alternate function: Power LED output. Please refer to TABLE C
Reserved
WDT_CTRL0* BIT[3]
X
0
1
1
- 147 -
W83977ATF/W83977ATG
WDT_CTRL1 BIT[0]
X
X
0
1
Publication Release Date: May 2006
1 Hertz Toggle pulse
Continuous high or low*
Continuous high or low*
1 Hertz Toggle pulse
POWER LED STATE
Revision 0.6