SAA7712H Datasheet, PDF (26/44 Pages) NXP Semiconductors – Sound effects DSP

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S ^{0 011100 0C}
ADDR H
C
ADDR L
C
DATA H
C
DATA M
C
DATA L
CP
K
K
K
K
K
K
address
R/W
auto increment if repeated n-groups of 3 (2) bytes
MGD568
S = START condition.
ACK = acknowledge from DSP (SDA LOW).
ADDR H and ADDR L = address DSP register.
DATA H, DATA M and DATA L = data of XRAM or registers.
DATA H and DATA M = data of YRAM.
P = STOP condition.
Fig.15 Master transmitter writes to the DSP registers.
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A
A
A
A
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A
S ^{0 011100 0C}
ADDR H
C
ADDR L
CS0 0 1 1 1 0 0 1C
DATA H
C
DATA M
C
DATA L
CP
K
K
K
K
K
K
K
address
R/W
R/W
auto increment if repeated n-groups of 3 (2) bytes
MGA808 - 1
S = START condition.
ACK = acknowledge from DSP (SDA LOW).
ADDR H and ADDR L = address DSP register.
DATA H, DATA M and DATA L = data of XRAM or registers.
DATA H and DATA M = data of YRAM.
P = STOP condition.
Fig.16 Master transmitter reads from the DSP registers.