TWL1101PFBR Datasheet, PDF (16/31 Pages) Texas Instruments – VOICE-BAND AUDIO PROCESSOR (VBAPE)

TWL1101
VOICE-BAND AUDIO PROCESSOR (VBAP™)
SLWS074A – MAY 1998 REVISED MARCH 1999
PARAMETER MEASUREMENT INFORMATION
SCL
SDA
Start
A6 A5 A4 A0 R/W ACK
0
0
Slave Address
R7 R6 R5
R0 ACK
0
Register Address
NOTE: SLAVE = VBAP
Figure 1. I²C-Bus Write to VBAP
D7 D6 D5
Data
D0 ACK
0
Stop
SCL
SDA
A6 A5
A0 R/W ACK
Start
00
Slave Address
NOTE: SLAVE = VBAP
R7 R6
R0 ACK
Register Address
A6
A0 R/W ACK
10
Slave Address
Repeated
Start
D7 D6
D0 ACK
Slave Drives
The Data
Master ^Stop
Drives
ACK and Stop
Figure 2. I²C Read From VBAP: Protocol A
SCL
SDA
Start
A6 A5
A0 R/W ACK
00
Slave Address
NOTE: SLAVE = VBAP
R7 R6
R0 ACK
A6 A5
A0 R/W ACK D7 D0 ACK
Stop Start
Register Address
Slave Address
Slave Drives
Stop
Master
The Data
Drives
ACK and Stop
Figure 3. I²C Read From VBAP: Protocol B
SCL
SDA
Stop
Start
Figure 4. I²C Stop – Start Clock Timing
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