W83783S Datasheet, PDF (12/57 Pages) Winbond – MONITORING IC

W83783S
(b) Serial bus write to internal address register only
Preliminary
0
SCL
780
78
SDA
0
Start By
Master
10110
Frame 1
Serial Bus Address Byte
1 R/W
D7 D6 D5 D4 D3 D2 D1 D0
Ack
by
Frame 2
781D
Internal Index Register Byte
Ack
by
781D
Stop by
Master
0
Figure 2. Serial Bus Write to Internal Address Register Only
(c) Serial bus read from a register with the internal address register prefer to desired location
0
SCL
780
78
SDA
0
Start By
Master
10110
Frame 1
Serial Bus Address Byte
1 R/W
D7 D6 D5 D4 D3 D2 D1 D0
Ack
by
Frame 2
781D
Internal Index Register Byte
Ack
by
Stop by
Master ^Master
0
Figure 3. Serial Bus Write to Internal Address Register Only
6.2.2 The serial bus timing of the temperature 2 and 3 is shown as follow:
(a) Typical 2-byte read from preset pointer location (Temp, T_OS, T_HYST)
0
SCL
SDA
0
Start By
Master
10110
Frame 1
Serial Bus Address Byte
780
780
7
...
...
1 R/W
D7 ...
D1 D0
D7 ...
D1 D0
Ack
Ack
by
Frame 2
by
Master
782D
MSB Data Byte
Frame 3
LSB Data Byte
Ack
by
Master
Stop by
Master
Figure 4. Typical 2-Byte Read From Preset Pointer Location
Publication Release Date: April 1999
-7-
Revision 0.55