W83791G Nuvoton Technology Corporation of America, W83791G Datasheet - Page 77

• Manufacturer Part Number: W83791G
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83791G

• Function: Hardware Monitor
• Topology: ADC
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Type: I²C™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8. ARP (ADDRESS RESOLUTION PROTOCOL) USE REGISTER DEFINED
8.1
each device must implement a unique device identifier (UDID). This 128-bit number is comprised of
the following fields:
Capabilities
20h
21h
22-23h
24-25h
26-27h
28-29h
2A-2Bh
2C-2Fh
Index 20h
INDEX
Bank 1
Device
Byte
In order to provide a mechanism to isolate each device for the purpose of address assignment
1
Unique Device Identifier (UDID) -- 20h-2Fh (Bank 1)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ATTRIBUTE
Index 21h
Revision
Version/
Bank 1
Byte
1
Vendor ID Device ID
22h-23h
Device
capabilities. See detail SMBus 2.0.
Version/Revision (VERSION [7:0]). UDID version number and silicon
revision identification. See detail SMBus2.0 Tues.
Vendor ID (VENDOR_ID [15:0]). The device manufacturer’s ID as
assigned by the SBS Implementers’ Forum or the PCI SIG.
Device ID (DEV_ID [15:0]). The device ID as assigned by the device
manufacturer (identified by the Vendor ID field).
Interface (INTERFACE [15:0]). Identifies the protocol layer interfaces
supported over the SMBus connection by the device. For example, ASF
and IPMI.
Subsystem Vendor ID (SVENDOR_ID [15:0]). This field may hold a
value derived from any of several sources:
1. The device manufacturer’s ID as assigned by the SBS Implementers’
Forum or the PCI SIG.
2. The device OEM’s ID as assigned by the SBS Implementers’ Forum
or the PCI SIG.
3. A value that, in combination with the Subsystem Device ID, can be
used to identify an organization or industry group that has defined a
particular common device interface specification.
Subsystem Device ID (SDEV_ID [15:0]). The subsystem ID identifies a
specific interface, implementation, or device. The Subsystem ID is
defined by the party identified by the Subsystem Vendor ID field.
Vendor Specific ID
See detail SMBus 2.0.
Bank 1
Byte
2
Capabilities
24h-25h
Bank 1
Byte
2
- 71 -
Interface
26h-27h
(SPEC_ID [31:0]). A unique number per device.
Bank 1
(DEV_CAP
Byte
2
DESCRIPTIONS
Subsystem
Vendor ID
28h-29h
Publication Release Date: April 14, 2006
Bank 1
Byte
[7:0]).
2
Describes
Subsystem
Device ID
2Ah-2Bh
Bank 1
Byte
W83791D/G
2
the
Specific ID
Revision 1.1
2Ch-2Fh
Vendor
Bank 1
device’s
Byte
4