SAA7373 Datasheet, PDF (33/60 Pages) NXP Semiconductors – Digital servo processor and Compact Disc decoder CD7

Philips Semiconductors
Digital servo processor and Compact Disc
decoder (CD7)
Product specification
SAA7373
RAB
(microcontroller)
SCL
(microcontroller)
SDA (SAA7373)
CRC
OK Q1 Q2 Q3
STATUS
Qn–2 Qn–1 Qn
MGR328
Fig.25 Microcontroller protocol for reading Q-channel subcode.
RAB
(microcontroller)
SCL
(microcontroller)
high
SDA (SAA7373)
impedance
CRC OK
10.8/n ms
15.4/n ms
2.3/n
ms
READ start allowed
CRC OK
MGR329
1998 Jul 06
Fig.26 SUBQREADY-I status timing when no subcode is read.
33