saa5250 NXP Semiconductors, saa5250 Datasheet - Page 20

• Manufacturer Part Number: saa5250
• Description: Interface For Data Acquisition And Control For Multi-standard Teletext Systems
• Manufacturer: NXP Semiconductors

Philips Semiconductors
January 1987
handbook, full pagewidth
Interface for data acquisition and control
(for multi-standard teletext systems)
DECREMENT FORMAT COUNTER
SET PAGE IN PROGRESS FLAG
1
PAGE DETECT
COUNTER = 0
PROGRESS
START OF
PAGE IN
FORMAT
Fig.6 DIDON (short) acquisition flow chart.
0
1
0
1
0
20
FAST
DECREMENT FORMAT COUNTER.
WRITE DATA BYTES INTO FIFO
LOAD FORMAT COUNTER
WRITE FORMAT INTO FIFO
WITH INCOMING VALUE
INITIALIZE CIDAC
CODE DETECT
COUNTER = 0
SLOW/FAST
FRAMING
FORMAT
A O.K.
MODE
1
1
0
SLOW
0
0
1
MGH083
Product specification
SAA5250