ASC7611 ETC2 [List of Unclassifed Manufacturers], ASC7611 Datasheet - Page 10

• Manufacturer Part Number: ASC7611
• Description: HARDWARE MONITOR WITH INTEGRATED FAN CONTROL
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Note: The following figures assume that Device Address 2Ch has been chosen by the user.
© Andigilog, Inc. 2006
SDA
SDA
SDA
SCL
SCL
SCL
without stop by Master
Start
Start
Start
S
S
S
Register Address
SMBus Device Address Byte (2Ch)
SMBus Device Address Byte (2Ch)
SMBus Device Address Byte (2Ch)
Pointer Set
1
0
1
0
1
0
(Figure 2.)
1
1
1
0
0
0
1
1
1
1
1
1
+
Figure 5 Register Read When Read Address Already Set
0
0
0
0
0
Re-start
0
S
R/W
SMBus Device Address Byte (2Ch)
R/W
R/W
Figure 2 Register Address Pointer Set
1
0
aSC7611
aSC7611
aSC7611
9
9
9
ACK
from
ACK
from
ACK
from
A
A
A
1
A7
A7
D7
1
1
1
0
Figure 3 Register Write
Figure 4 Register Read
A6
A6
D6
Register Address Byte
Register Address Byte
Register Data Byte
1
A5
A5
D5
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1
A4
A4
D4
0
- 10 -
A3
A3
D3
0
A2
A2
D2
R/W
aSC7611
A1
A1
D1
ACK
from
9
A
aSC7611
D0
A0
A0
Master
D7
NACK
1
aSC7611
ACK
from
from
9
9
ACK
from
9
N
A
A
D6
Stop
By
Master
D7
Register Data Byte
Stop
by
Master
1
D5
D6
Register Data Byte
D4
D5
D3
D4
D2
D3
D1
October 2006 - 70A05007
D2
D0
Master
NACK
D1
from
9
N
aSC7611
aSC7611
D0
Stop
by
Master
ACK
from
9
A
Stop
by
Master