ADAU1445 Analog Devices, ADAU1445 Datasheet - Page 28

• Manufacturer Part Number: ADAU1445
• Manufacturer: Analog Devices

Specifications of ADAU1445

• Instructions/cycles: 3584
• Digital I/o Channels: 24/24
• Analog I/o Channels: 0/0
• Product Description: Digital audio processor with flexible audio routing matrix, 8 × 2-channel ASRC

ADAU1442/ADAU1445/ADAU1446
(CONTINUED)
(CONTINUED)
(CONTINUED)
(CONTINUED)
START BY
MASTER
SCL
SDA
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS AN N-WORD WRITE, WHERE EACH WORD HAS TWO BYTES. (OTHER WORD LENGTHS ARE POSSIBLE, RANGING FROM ONE TO FIVE BYTES.)
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS A ONE-WORD WRITE, WHERE EACH WORD HAS N BYTES.
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS AN N-WORD WRITE, WHERE EACH WORD HAS TWO BYTES. (OTHER WORD LENGTHS ARE POSSIBLE, RANGING FROM ONE TO FIVE BYTES.)
S
S
S
SCL
SDA
S = START BIT, P = STOP BIT, AM = ACKNOWLEDGE BY MASTER, AS = ACKNOWLEDGE BY SLAVE.
SHOWS A ONE-WORD WRITE, WHERE EACH WORD HAS N BYTES.
SCL
SDA
S
ADDRESS,
ADDRESS,
CHIP ADDRESS,
CHIP ADDRESS,
R/W = 0
R/W = 0
CHIP
CHIP
R/W = 0
R/W = 0
0
AS
AS
1
SUBADDRESS,
SUBADDRESS,
AS
AS
HIGH
HIGH
1
SUBADDRESS,
SUBADDRESS BYTE 2
CHIP ADDRESS BYTE
SUBADDRESS,
READ DATA BYTE 1
HIGH
1
HIGH
AS
AS
FRAME 1
FRAME 3
FRAME 5
ADAU1442/ADAU1445/ADAU1446
SUBADDRESS,
SUBADDRESS,
0
ADAU1442/ADAU1445/ADAU1446
AS
LOW
LOW
0
SUBADDRESS,
AS
LOW
ADR
SEL
Figure 15. Single-Word I
Figure 17. Single-Word I
Figure 16. Burst Mode I
AS
AS
Figure 18. Burst Mode I
SUBADDRESS,
DATA-WORD 1,
LOW
BYTE 1
R/W
S
Figure 14. I
AS
ADDRESS,
ACK BY
MASTER
ACK BY
Rev. C | Page 28 of 92
ACK BY
R/W = 1
S
CHIP
AS
DATA-WORD 1,
CHIP ADDRESS,
AS
2
BYTE 2
C Read Clocking
R/W = 1
REPEATED
START BY
MASTER
AS
2
2
2
2
C Write Sequence
C Read Sequence
C Write Sequence
C Read Sequence
BYTE 1
AS
DATA-WORD 1,
DATA
DATA-WORD 2,
BYTE 1
AS
BYTE 1
0
BYTE 1
DATA
AS
SUBADDRESS BYTE 1
READ DATA BYTE 2
AM
AS
DATA-WORD 2,
1
DATA-WORD 1,
FRAME 6
FRAME 2
BYTE 2
BYTE 2
BYTE 2
CHIP ADDRESS BYTE
AM
DATA
1
ADAU1442/ADAU1445/ADAU1446
FRAME 4
BYTE 2
AS
AM
DATA
1
AS
...
...
DATA-WORD N,
DATA-WORD N,
AM
ADAU1442/ADAU1445/ADAU1446
0
...
BYTE 1
BYTE 1
...
0
BYTE N
DATA
AM
AS
MASTER
ACK BY
ACK BY
DATA-WORD N,
DATA-WORD N,
BYTE N
ADR
DATA
SEL
BYTE 2
BYTE 2
R/W
AS
STOP BY
MASTER
AM
AS
AM
ACK BY
P
P
P
P