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參數(shù)資料
| 型號： | LC74798 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | On-Screen Display Controller IC(屏幕顯示控制器芯片) |
| 中文描述： | 屏幕顯示控制器IC（屏幕顯示控制器芯片） |
| 文件頁數(shù)： | 12/32頁 |
| 文件大?。?/td> | 271K |
| 代理商： | LC74798 |
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Note: All registers are set to 0 when the LC74798/M is reset by the RST pin.
Second byte
DA
Register
Contents
Notes
0 to 7
State
Function
7
—
0
Second byte identification bit
6
BLK2
0
Character display area
1
Video display area
5
BLK1
0
1
4
BLK0
0
1
3
BK1
0
Blinking period: About 0.5 s
1
Blinking period: About 1.0 s
2
BK0
0
Blinking off
1
Blinking on
1
RV
0
Reverse video off
1
Reverse video on
0
DSPON
0
Character display off
1
Character display on
Changes the blanking size
Switches the blinking period
Blinking in reverse video mode switches the display between
normal character display and reverse video display
Specifies the size for complete fill in
No. 5833-12/32
LC74798, 74798M
COMMAND4 (Display control setup command)
First byte
DA
Register
Contents
Notes
0 to 7
State
Function
7
—
1
6
—
1
5
—
1
4
—
0
3
TSTMOD
0
Normal operating mode
1
Test mode
2
RAMERS
0
1
Erase display RAM. (The RAM data is set to 7F hexadecimal.)
1
OSCSTP
0
Do not stop the crystal and VCO oscillators
1
Stop the crystal and VCO oscillators
0
SYSRST
0
1
Reset all registers and turn display off
Command 4 identification code.
Display character data write setup.
This bit must be set to 0
Erasing RAM takes about 500 μs. (This operation
must be executed in the DSPOFF state.)
Valid in external synchronization mode when
character display is off. It will no longer be possible
to detect VPS/PDC data
The registers are reset when the CS pin is low, and
the reset state is cleared when CS is set high
0
1
0
Blanking off
Character size
1
Frame size
Complete fill in size
BLK1
BLK0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LC74798M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller IC |
| LC74799 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller IC |
| LC74799M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller IC |
| LC7480 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video A/D Converter with 3-Input Multiplexer |
| LC7480M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video A/D Converter with 3-Input Multiplexer |
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