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參數(shù)資料
| 型號： | LC74730M |
| 元件分類： | 畫面疊加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDSO30 |
| 封裝： | MFP30S |
| 文件頁數(shù)： | 14/14頁 |
| 文件大小： | 250K |
| 代理商： | LC74730M |
⑤ COMMAND 4 (Display control setup command)
First byte
Second byte
Note: All these registers are set to 0 by a reset due to the RST pin.
No. 4247-9/14
LC74730M
Register content
DA0 to DA7
Register name
State
Function
Note
7—
0
Second byte identification code
6—
0
5
NON
0
Interlace (262.5 H per field)
Switches between interlaced and
1
Non-interlaced (263 H per field)
non-interlaced display
4EG
0
Border off
1
Border on
3
BK1
0
Blinking period: about 0.5 s
Switches the blinking period
1
Blinking period: about 1 s
0
Blinking off
Blinking during reversed video character
2
BK0
display switches the character display
1
Blinking on
between normal display and reversed
video display.
1RV
0
Reverse video character display off
1
Reverse video character display on
0
DSPON
0
Character display off
1
Character display on
Register content
DA0 to DA7
Register name
State
Function
Note
7—
1
6—
1
Command 4 identification code
5—
0
Sets up the display control state.
4—
0
3
TSTMOD
0
Normal operating mode
Must be set to 0.
1
Test mode
2CB
0
Output the color burst signal.
Valid only when BCL is high.
1
Stop color burst signal output.
1
OSCSTP
0
Does not stop the crystal and LC oscillators.
Valid in external synchronization mode
1
Stops the crystal and LC oscillators.
when character display is off.
0
SYSRST
0
Reset occurs when the CS pin is low, and
1
Resets all registers and turns off display.
the reset is cleared when CS goes high.
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