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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 14/32頁(yè) |
| 文件大?。?/td> | 271K |
| 代理商： | LC74798 |
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No. 5833-14/32
LC74798, 74798M
COMMAND6 (Synchronizing signal detection setup command)
First byte
DA
Register
Contents
Notes
0 to 7
State
Function
7
—
1
6
—
1
5
—
1
4
—
0
3
SEL0
0
1
2
MOD0
0
1
1
DISLIN
0
12 lines
1
10 lines
0
MUT
0
Normal output
1
CV
IN
is cut and CV
OUT
is held at the pedestal level
Command 6 identification code.
Sets up synchronizing signal control.
Switches the SEP
OUT
(pin 26) output
Switches the number of lines displayed
CV
OUT
switching
0
1
0
DAV
Sliced data width
1
CSYNC
ST.PULSE
SEL0
MOD0
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
RN2
0
1
5
RN1
0
1
4
RN0
0
1
3
SN3
0
1
2
SN2
0
1
1
SN1
0
1
0
SN0
0
1
External synchronizing signal detection control.
Signal present
→
signal absent transition
detection.
Sets the sampling period in which SYNC cannot be
detected continuously in the horizontal
synchronizing signal period (1H).
External synchronizing signal detection control.
Signal absent
→
signal present transition
detection.
Sets the sampling period in which SYNC can be
detected continuously in the horizontal
synchronizing signal period (1H).
RN2
RN1
RN0
Number of times HSYNC detected
0
0
0
32 times
0
0
1
4 times
0
1
0
8 times
1
0
0
16 times
SN3
SN2
SN1
SN0
Number of times HSYNC detected
0
0
0
0
Not detected
0
0
0
1
32 times
0
0
1
0
64 times
0
1
0
0
128 times
1
0
0
0
256 times
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相關(guān)代理商/技術(shù)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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