w83627ehf Winbond Electronics Corp America, w83627ehf Datasheet - Page 31

• Manufacturer Part Number: w83627ehf
• Description: W83627ehf/ef W83627ehg/eg Winbond Lpc I/o
• Manufacturer: Winbond Electronics Corp America

6.2.2
The second interface uses I
It defined at Index 48h.
6.2.2.1. Serial bus (I2C) access timing
(a) Serial bus write to internal address register followed by the data byte
(b) Serial bus read from a register
SCL
SDA
SCL
SDA
I
Start By
Master
2
Repeat
start
by
Master
C interface
Start By
Master
0
0
0
0
Figure 1. Serial Bus Write to Internal Address Register followed by the Data Byte
0
0
1
1
Serial Bus Address Byte
Serial Bus Address Byte
1
0
Figure 2. Serial Bus Read from Internal Address Register
0
Serial Bus Address Byte
SCL
SDA (Continued)
Frame 3
Frame 1
0
1
2
1
(Continued)
C Serial Bus. W83627EHF/EHG has a programmable serial bus address.
Frame 1
1
1
1
1
0
0
0
1
W83627EHF/EF, W83627EHG/EG
1
1
R/W
7
0
R/W
7
0
D7
627EHF
Ack
R/W
0
7
by
8
627EHF
-25-
Ack
627EHF
by
Ack
8
D6
by
8
0
D7
0
D7
D5
0
D7
D6
Data Byte
Frame 4
D6
D4
D6
D5
Publication Release Date: January 18, 2006
Internal Index Register Byte
Internal Index Register Byte
D5
D3
D5
Data Byte
Frame 3
D4
Frame 2
Frame 2
D4
D4
D2
D3
D3
D2
D3
D1
D2
D1
D2
7
D0
D1
7
D0
Ack
784R
627EHF
by
Ack
D1
8
by
7
D0
Master
Ack
by
8
7
D0
Stop
Master
by
627EHF
Ack
8
Revision 1.0
Stop by
Master
by
627EHF
Ack
8
by