M494 Datasheet, PDF (18/22 Pages) STMicroelectronics – SINGLE-CHIP VOLTAGE TUNING SYSTEM WITH 4 ANALOG CONTROLS AND mP INTERFACE

M494
COMMANDS (continued)
Figure 12 : Secondary Method for Storing a Station (postselection of program number)
BEGIN
TIME
UP/DOWN
No
STORE
STATION AT
CURRENT
PROGRAMME ?
SET SKIP FLAG
AT CURRENT
PROGRAMME ?
STATION
TUNED ?
Yes
Yes
No
Yes
No
SET SKIP
FLAG &
STORE
STORE
CONTINUE ?
No
Yes
MEMORY
ADDRESSING
SELECT
PROGRAMME
(Direct Only)
END
END
THIS DISPLAY FLASHES
AT 5Hz UNTIL A PROGRAMME
SELECTION IS COMPLETED
OR ANY OTHER COMMAND
IS GIVEN
SELECTED PROGRAMME
NO. FLASHES AT 5Hz
FOR 1 SECOND
Figure 13 : Program Selection Routine (16 program)
BEGIN
KEY PRESENT
FOR DESIRED
PROGRAMME?
No
Yes
SELECT
NUMBER
MEMORY
SEQUENCE
UP OR DOWN TO
DESIRED
PROGRAMME
END
END
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