W83793G Datasheet, PDF (21/131 Pages) Winbond – Winbond H/W Monitor

W83793G
DOWN COUNTER (WATCH DOG TIMER)
BIT
7
6
5
4
3
2
1
0
Name
Timeout Time
Reset
00_HEX
BIT
DESCRIPTION
Timeout Time.
7-0
To write 00_HEX can disable timer while in Hard Watch Dog Timer mode.
To set Timeout Time for SOFT Watch Dog Timer, unit is min.
The Timeout Time is unit in minutes, and 0 represents the timer is timeout or cleared. 1 represents
there still have 1 sec to 1 minute for this timer. In this fashion, 2 shows time to time up is 1 minute 1
sec to 2 minutes.
8.3 Configuration and Address Select Registers
8.3.1 Register Maps
8.3.1.1 I²C Address Registers Map
MNEMONIC
REGISTER NAME
TYPE
I2CADDR
I²C Address
R/W
TEMPD1/2ADDR
LM75 Temperature Sensor I²C
Address
R/W
There are four Addresses (58_HEX, 5A_HEX, 5C_HEX, 5E_HEX) can be assigned for W83793G I²C interface.
And it also provides four I²C Addresses for each LM75-like Temperature Sensor (90_HEX, 92_HEX, 94_HEX,
96_HEX for TD1 and 98_HEX, 9A_HEX, 9C_HEX, 9E_HEX for TD2). These three addresses can be set by trapping
pin 42 & 44 input value at 100ms after power ready.
The registers for Temperature sensor D1 & D2 can also be accessed by respective addresses that set
as I²C address of W83793G. The LM75-like functions default are enabled and can be disabled by
setting bit 3 and bit 7 of TEMPD1/2ADDR to 1.
8.3.1.2 Configuration Register Maps
MNEMONIC
REGISTER NAME
TYPE
CONFIG
Configuration Register
R/W
Configuration Register controls the system reset source, stop, power down and warning output mode.
8.3.2 Register Details
8.3.2.1 I²C Address Register (I2CADDR)
Location:
Type:
Bank 0 Address 0B_HEX
Read / Write
Reset:
100ms after VSB5V (Pin 7) Rising.
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Publication Release Date: Dec. 11, 2006
Revision 1.0