W83977G Winbond Electronics Corp America, W83977G Datasheet - Page 147

• Manufacturer Part Number: W83977G
• Description: W83877TF plus KBC, CIR, RTC, Pb-free
• Manufacturer: Winbond Electronics Corp America

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.
CRF1 ( Default 0x00)
*Note : If the logical device activate bit is not set then bit 0 and 1 have no effect.
13.10 Logical Device 8 (Auxiliary I/O Part II)
CR30 (Default 0x00)
CR31
Bit 7-4 : Reserved.
Bit 4-3 : Select Function.
= 00 Select Basic I/O function.
= 01 Select 1st alternate function : Power LED output. Please refer to TABLE C
= 1x Reserved
Bit 2 : Reserved.
Bit 1 : Polarity : 1 : Invert, 0 : No Invert
Bit 0 : In/Out : 1 : Input, 0 : Output
General Purpose Read/Write Enable*
Bit 7-2 : Reserved
Bit 1 :
Bit 0 :
= 1 Enable General Purpose Address Decode
= 0 Disable General Purpose Address Decode
Bit 7-1 : Reserved.
Bit 0 :
= 1 Activates the logical device.
= 0 Logical device is inactive.
Bit 7-2 : Reserved.
Bit 1 : ENRNGCK -- > Enable I/O Range check
Bit 0 : FORIORD --> Forces LDN to respond I/O read
WDT_CTRL1* BIT[1]*
W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
2). Continuous high or low depends on the polarity bit of GP13 or GP17 configure registers.
= 1 Enable General Purpose Write Strobe
= 0 Disable General Purpose Write Strobe
1
0
0
0
WDT_CTRL0* BIT[3]
X
0
1
1
-139 -
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 0.60