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