SAA7715 PHILIPS [NXP Semiconductors], SAA7715 Datasheet - Page 15

• Manufacturer Part Number: SAA7715
• Description: Digital Signal Processor
• Manufacturer: PHILIPS [NXP Semiconductors]

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S = START condition.
P = STOP condition.
ACK = acknowledge from SAA7715.
ADDR H and ADDR L = address DSP register.
DATA 1 to DATA 4 = 2, 3 or 4 bytes data word.
S = START condition.
Sr = repeated START condition.
P = STOP condition.
ACK = acknowledge from SAA7715 (SDA LOW).
R = repeat n-times the 2, 3 or 4 bytes data group.
NA = Negative Acknowledge master (SDA HIGH).
ADDR H and ADDR L = address DSP register.
DATA 1 to DATA 4 = 2, 3 or 4 bytes data word.
S
S
0
0
0 1 1 1 1 0 0
0 1 1 1 1 0 0
address
address
R/W
A
C
K
R/W
A
C
K
ADDR H
ADDR H
A
C
K
Fig.6 Master transmitter reads from the SAA7715 registers.
Fig.5 Master transmitter writes to the SAA7715 registers.
ADDR L
A
C
K
ADDR L
A
C
K
S
r
0
0 1 1
C
A
K
1 1 0
R/W
1
DATA 1
C
A
K
auto increment if repeated n-groups of 2, 3 or 4 bytes
DATA 1
auto increment if repeated n-groups of 2, 3 or 4 bytes
A
C
K
A
C
K
DATA ...
DATA ...
A
C
K
A
C
K
DATA 4
DATA 4
A
C
K
MGU331
A
C
K
R
MGU330
N
P
A
P