F81867 Datasheet, PDF (118/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

F81867
WDT Control Port ⎯ Offset 03h
Bit
Name
R/W Reset Default
Description
7 P80_WDT_TO_ST R/W 5VSB
The bit is pre-defined for Port 80 WDT function. User could change its
usage.
0 The WDT is implemented by firmware. When time out occurs, EC set this bit
and could assert reset signal from defined pins. Host read this bit to check
the status and write “1” to clear status.
The bit is pre-defined for Port 80 WDT function. EC read this bit to
enable/disable WDT function.
6
P80_WDT_EN R/W 5VSB
0 _{0: Disable WDT function.}
1: Enable WDT function.
5-4 P80_WDT_UNIT R/W 5VSB
0
The bit is pre-defined for Port 80 WDT function. EC read this bit to decide
WDT unit. The unit is user defined.
3-0
P80_WDT_PIN R/W 5VSB
0
The bit is pre-defined for Port 80 WDT function. This is the mask for WDT
event pins. The pin to assert WDT event is user defined.
WDT Time Register ⎯ Offset 04h
Bit
Name
R/W Reset Default
Description
7-0 P80_WDT_TIME R/W 5VSB
The byte is pre-defined for Port 80 WDT function. Host writes this byte to
ffh _{inform EC the WDT count down time.}
WDT Enable Code ⎯ Offset 05h
Bit
Name
R/W Reset Default
Description
7-0 P80_WDT_CODE R/W 5VSB
-
The byte is pre-defined for Port 80 WDT function. EC wait for WDT start until
0x80 port data matches this byte.
80 Port Data ⎯ Offset 06h
Bit
Name
R/W Reset Default
Description
The data write to 0x80/0x81(if P80_DEC_RANGE is set) will be latched into
7-0
P80_DATA
R/W 5VSB
- _{this byte. EC could dump the value into internal RAM for further use.}
80 Port Data ⎯ Offset 07h
Bit
Name
R/W Reset Default
Description
7-0 P80_LAST_DATA R 5VSB
-
This byte is pre-defined for the last 0x80 port last data. EC write 0x80 port
data back to this byte.
118
Dec, 2011
V0.12P