W83793G Datasheet, PDF (104/131 Pages) Winbond – Winbond H/W Monitor

W83793G
UDIDSUBVENL
BIT
7
6
5
4
3
2
1
0
Name
UDID Subsystem Device ID Low Byte
Reset
0
0
0
0
0
0
0
0
BIT
15-0
DESCRIPTION
UDID subsystem Device ID.
8.13.2.8 UDID Vendor-Specific ID Register (UDIDSpecID1/2/3/4)
This field defines unique Vendor-Specific ID for each W83793G. With this field different W83793G will
identified on the same SMBus interface, and it is loaded with random number while reset signal
received.
Location :
UDIDSpecID1 - Bank 1 Address 2C_HEX
UDIDSpecID2 - Bank 1 Address 2D_HEX
UDIDSpecID3 - Bank 1 Address 2E_HEX
UDIDSpecID4 - Bank 1 Address 2F_HEX
Type: Read Write
Reset: VSB5V (Pin 7) Rising,
Init Reset (CR40.Bit7) is set,
ARP ResetDevice Command.
UDIDSPECID1~UDIDSPECID4
BIT
7
6
5
4
3
2
1
0
Name
UDID Specific Vendor ID
Reset
0
0
0
0
0
0
0
0
BIT
31-0 UDID Vendor-Specific ID.
DESCRIPTION
8.13.2.9 Random Number Generator Register (RNG1/2/3/4)
W83793G internally generates pseudo random number by using CRC generator and internal clock.
Due to internal clock always having little different deviations, different IC and different power-on time
will affect the result of random number. It is reset to FFFF_HEX.
Location:
RNG4 - Bank 1 Address 30_HEX
RNG3 - Bank 1 Address 31_HEX
RNG2 - Bank 1 Address 32_HEX
RNG1 - Bank 1 Address 33_HEX
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