參數(shù)資料
型號(hào): LC74785
廠商: Sanyo Electric Co.,Ltd.
英文描述: On-Screen Display Controller LSI(屏幕顯示控制器規(guī)模集成電路(LSI))
中文描述: 屏幕顯示控制器芯片(屏幕顯示控制器規(guī)模集成電路(LSI)的)
文件頁(yè)數(shù): 17/24頁(yè)
文件大?。?/td> 268K
代理商: LC74785
No. 5520-17/24
LC74785, LC74785M
COMMAND7 (Display control setup command)
First byte
DA
0 to 7
7
6
5
4
3
2
Register
Contents
Notes
State
1
1
1
1
0
0
0
1
0
1
Function
Extended command 0 identification code
1
SEL1
Vertical synchronizing signal (external V separation) input
Frame signal input
Use internal V separation.
Do not use internal V separation.
0
CTL3
Switches V separation.
Second byte
Note: All registers are set to 0 when the LC74785/M is reset by the RST pin.
DA
0 to 7
7
6
5
Register
Contents
Notes
State
0
0
0
0
1
0
1
0
1
0
1
0
1
Function
Second byte identification bit
4
VNPSEL
V falling edge detection
V rising edge detection
VSEP: about 8.9 μs
VSEP: about 17.8 μs
Mask valid
Mask invalid
3H
20H
Border level 0 only (VBK0)
Two-stage border level (VBK0 and VBK1)
3
VSPSEL
Switches the internal V separation period.
2
MSKERS
Clears the HSYNC and VSYNK masks.
1
MSKSEL
Switches the VSYNC mask.
0
EGL
Switches the V acquisition polarity in external
mode when internal V separation is used.
Switches the border level.
(Only valid when BLK0 is 0 and BLK1 is 1.)
Switches the SEP
IN
(pin 20) input.
Only valid when CTL3 is high.
Command 7 identification code
Display control setup
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