w83795g Winbond Electronics Corp America, w83795g Datasheet - Page 85

• Manufacturer Part Number: w83795g
• Description: Nuvoton H/w Monitor
• Manufacturer: Winbond Electronics Corp America

9.1.2
9.1.2.1.
SMBus Specification Working Group intends to use device capability to distinguish the arbitration
priority of GeneralGetUDID() first. Thus the very first byte of the UDID is device capability, because
SMBus is a MSB first serial protocol and if the client was pulled low, it wins the arbitration. It is set as
C1
Location: UDIDDDevCap - Bank 1 Address 20
Type:
Reset:
Default Value: C1
9.1.2.2.
This field defines the version of UDID and Silicon for the W83795G/ADG. The default is 08
Location: UDIDVersion - Bank 1 Address 21
Type:
Reset:
Default Value: 08
HEX
BIT
7-6
5-1
BIT
7-6
5-3
2-0
0
.
ASF Register Details
UDID Device Capability Register (UDIDDDevCap)
Read Only
No Reset.
UDID Version Number Register (UDIDVersion)
Read Only
No Reset
Address Type.
00
01
10
reassigned at next power on. The W83795G/ADG ASF address will be lost if 3VSB does
not exist.
11
Reserved.
PEC – PEC Support
0 = PEC (Packet Error Code) is not supported on this device.
1 = PEC is supported on this device.
Reserved.
UDID Version.
000
001
010
Silicon Version.
For the identification of the W83795G/ADG silicon version. 000
BIN
BIN
BIN
BIN
BIN
BIN
BIN
= Fixed address device. It’s the highest priority device.
= Dynamic and persistent address device.
= Random number device. (Default)
= Dynamic and volatile address device. If powered-down, the address needs to be
HEX
HEX
-111
= Reserved.
= UDID version 1. (Default)
BIN
= Reserved for future use.
HEX
HEX
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DESCRIPTION
DESCRIPTION
BIN
W83795G/ADG
stands for Version A/B.
Revision 1.41
HEX.
Aug/2/2010