Data Setting According To Key Processing; Table 5.5.1 Data Setting At Tuning And Searching; Table 5.5.2 Data Setting At "Volume Up/Down Key" Input; Table 5.5.3 Data Setting At "Screen-Size-Related Keys" Input - Renesas 7200 Series User Manual

Mitsubishi 8-bit single-chip microcomputer
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APPLICATION
5.5 Example of I
2

5.5.5 Data setting according to key processing

Examples of the M52340SP settings, corresponding to each actual TV set key input, are described below.
(1) "Power ON/OFF key" input
When power supply is supplied to the
M52340SP by this input, the data is set to all
registers (at sub-addresses "00
(2) "Tuning and search-related keys" (CH
UP/DOWN key, CH direct selection key) input
When tuning, the color system data (refer to
"Table 5.5.10") is set according to the
determination result of the color system by
the status data register (refer to "Table 5.5.1").
Also, the corresponding data is set when the
color system search-related keys are input.
However, note that the above-mentioned setting
is valid only when setting AUTO (bit 5 at sub-
address 06
, write data) to "0." When setting
16
to "1," the data is automatically set inside the
M52340SP.
When tuning, the data is set as shown in Table
5.5.1.
(3) "Volume UP/DOWN key" input
When the volume up/down key is input, the
data is set as shown in Table 5.5.2.
(4) "Screen-size-related keys" input
When the screen-related keys are input on
TVs with various screen sizes (wide aspect
TV, etc.), the screen size data and position
data is set as shown in Table 5.5.3. Also, the
data of each frequency (50 Hz or 60 Hz) is
occasionally held.
(5)
"Picture data control key" and "Picture
memory switching key" input
When changing picture data, the data is set
to the corresponding write data register as
shown in Table 5.5.4.
5-34
C-BUS control by software (M37220M3-XXXSP/FP)
" to "13
16
7220 Group User's Manual
").
16

Table 5.5.1 Data setting at tuning and searching

Sub-address
02
16
06
16
Table 5.5.2 Data setting at "volume UP/DOWN key"
input
Sub-address
03
16
Table 5.5.3 Data setting at "screen-size-related
keys" input
Sub-address
09
16
Table 5.5.4 Data setting at "picture data control
key" and "picture memory switching
key" input
Sub-address
04
16
05
16
07
16
08
16
0A
16
Bit
Data
TRAP
D5
DBF
D4
DFA
D1
D0, D1
DL TIME
Bit
Data
D0 to D6
AUDIO ATT
Data
Bit
H PHASE
D3 to D6
Data
Bit
D0 to D5
SHARPNESS
D0 to D6
CONTRAST
TINT
D0 to D6
COLOR
D0 to D6
BRIGHT
D0 to D6

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