SI4770-77-A20 Datasheet, PDF (11/54 Pages) Silicon Laboratories – HIGH-PERFORMANCE CONSUMER ELECTRONICS

Si4770/77-A20
t_SU:STA t_HD:STA
t_LOW
t_HIGH
SCL 70%
30%
t_r:IN
t_f:IN
t_SP
t_SU:STO
t_BUF
SDA 70%
30%
START
t_r:IN
t_HD:DAT t_SU:DAT
t_PD:DAT
t_f:IN,
t_f:OUT
STOP
Figure 3. I²C Control Interface Read and Write Timing Parameters
START
SCL
SDA
(Write)
A6-A0, 0
Command
7-0
Arg1
7-0
START ADDRESS + R/W
ACK
DATA
ACK
DATA
ACK
SDA
(Read)
A6-A0, 1
Status
7-0
Response
7-0
START ADDRESS + R/W
ACK
DATA
ACK
DATA
ACK
Figure 4. I²C Control Interface Read and Write Timing Diagram
STOP
STOP
Rev. 0.9
11