Fig. 5.5.14 Flowchart Of "Ch Up/Down Key" Input Processing - Renesas 7200 Series User Manual

5.5 Example of I
(2) "CH UP/DOWN key" input processing

Fig. 5.5.14 Flowchart of "CH UP/DOWN key" input processing

2
C-BUS control by software (M37220M3-XXXSP/FP)
CH UP/DOWN
To mute video and audio:
MUTE (D6 at sub-address 0B
A MUTE (D6 at sub-address 01
Related processings:
•Changing CH
•OSD when changing CH
2
•Write last data to E
, etc.
Set the following (color system):
•3.58 (D2 at sub-address 09
•NTSC (D1 at sub-address 02
•SECAM (D0 at sub-address 09
Wait for muting time
To release mute of picture and sound;
MUTE (D6 at sub-address 0B
A MUTE (D6 at sub-address 01
END
7220 Group User's Manual
)←"1"
16
)←"1"
16
PROM
)
16
)
16
)
16
)←"0"
16
)←"0"
16
APPLICATION
5-37