ADAV400_15 Datasheet, PDF (17/36 Pages) Analog Devices – Audio Codec with Embedded SigmaDSP Processor

SCL
SDA
0
0
1
0
1
0
ADR
SEL
R/W
START BY
MASTER
FRAME 1
CHIP ADDRESS BYTE
ACK BY
ADAV400
FRAME 2
SUBADDRESS BYTE 1
SCL
(CONTINUED)
SDA
(CONTINUED)
FRAME 2
SUBADDRESS BYTE 2
ACK BY
ADAV400
Figure 20. I²C Write Format
FRAME 3
DATA BYTE 1
ADAV400
ACK BY
ADAV400
ACK BY STOP BY
ADAV400 MASTER
SCL
SDA
0
0
START BY
MASTER
SCL
(CONTINUED)
SDA
(CONTINUED)
SCL
(CONTINUED)
SDA
(CONTINUED)
1
0
10
FRAME 1
CHIP ADDRESS BYTE
ADR
SEL
R/W
ACK BY
ADAV400
FRAME 2
SUBADDRESS BYTE 1
ACK BY
ADAV400
FRAME 3
SUBADDRESS BYTE 2
0
ACK BY REPEATED
ADAV400 START BY
MASTER
0
1
0
1
0
ADR
SEL
R/W
FRAME 4
CHIP ADDRESS BYTE
ACK BY
ADAV400
FRAME 5
READ DATA BYTE 1
ACK BY
MASTER
Figure 21. I²C Read Format
FRAME 6
READ DATA BYTE 1
ACK BY STOP BY
MASTER MASTER
Rev. A | Page 17 of 36