W83791G Nuvoton Technology Corporation of America, W83791G Datasheet - Page 22

• 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

Relative command list:
Following is an example of the Block Write-Block Read Process Call. The Block Write-Block Read
Process Call is a two-part message. It begins with a salve address and a write condition. After the
command code the host issues a write count M that describes how many more bytes will be written in
the first part of the message. The second part of the message is a block of read data beginning with a
repeated start condition followed by thee salve address and a Read Bit. The next read byte count N
indicates how many more data will be read in the second part of the message. Note that the combined
data payload must not exceed 32bytes. Besides, W83791D/G also provides packet error code (PEC)
to insure the accuracy during data transmission.
C2h
C2h
C2h
C2h
C2h
C2h
C2h
1
S
SLAVE ADDRESS
7
Slave
Address
1
Sr
7
Slave Address Rd A
01h
02h
03h
04h
Slave_Addr | 1 Direct Get UDID
Slave_Addr | 0 Direct Reset
05h-1Fh
1
Wr
8
Data Byte 2 A
8
Data Byte 2
COMMAND
1
A
8
Command Code A
1
1
Prepare to ARP
Reset device (general)
Get UDID (general)
Assign address
Reserved.
…
…
1
A
1
8
Data Byte N A
8
Byte Count=N A
…
…
- 16 -
1
8
Data Byte M
8
Byte Count=M
1
1
DESCRIPTION
8
PEC A
Publication Release Date: April 14, 2006
8
Data Byte 1 A
1
A
1
1
A
…
1
P
8
Data Byte 1
1
W83791D/G
1
…
Revision 1.1
1
A
…