SAA7372 Datasheet, PDF (34/60 Pages) NXP Semiconductors – Digital servo processor and Compact Disc decoder CD7

Philips Semiconductors
Digital servo processor and Compact Disc
decoder (CD7)
Product specification
SAA7372
RAB
(microcontroller)
SCL
(microcontroller)
SDA (SAA7372 )
t2
t1
t3
Q1 Q2 Q3
Qn
MGC979
Fig.27 SUBQREADY-I status timing when subcode is read.
handbook, full pagewidth _SILD
(microcontroller)
SCL
(microcontroller)
SDA
(microcontroller)
SDA (SAA7372)
SILD
(microcontroller)
SDA
(microcontroller)
D7 D6 D5 D4 D3 D2 D1 D0
command or data byte
high-impedance
microcontroller write (one byte: command or data)
COMMAND
DATA1
DATA2
microcontroller write (full command)
DATA3
MGC980
1998 Feb 26
Fig.28 Microcontroller protocol for write servo commands.
34