参数资料
型号: LC74799M
元件分类: 画面叠加
英文描述: ON-SCREEN DISPLAY IC, PDSO30
封装: 0.375 INCH, MFP-30
文件页数: 13/32页
文件大小: 322K
代理商: LC74799M
No. 5834-20/32
LC74799, 74799M
COMMAND12 (Display control setup command)
First byte
DA
Register
Contents
Notes
0 to 7
State
Function
7—
1
6—
1
5—
1
4—
1
3—
0
2—
1
1—
0
0—
1
Command 7 identification code.
Display control setup.
Extended command 5 identification code
Second byte
Note: All registers are set to 0 when the LC74799/M is reset by the RST pin.
DA
Register
Contents
Notes
0 to 7
State
Function
7—
0Second byte identification bit
6VINNP
0
Negative CSYNC input polarity
1Positive CSYNC input polarity
5VIN2
0Normal input
1
CSYNC input to the SEPIN pin
4
SEL22
0
1
3HLFTON
0
1
2
SEL2
0
1
SEL1
0
Vertical synchronization signal input (external synchronization)
1
Frame signal input
0
CTL3
0Internal V separation used
1Internal V separation not used (external V separation)
CSYNC input polarity selection
SEPIN pin input switching
SYNCJDG pin (pin 8) output switching.
The halftone output line specification depends on
background color specification (the logical or of the
3-line specification)
SYNCDET2: Used for character display
LOCK2: Used for character display
SEPIN (pin 27) input switching.
Only valid when CTL3 is high.
V separation switching
SEL22
SEL2
HLFTOM
Output
00
0
SYNCJDG
00
1
Halftone
010
O/E
011
LOCK
10
0
SYNDET2
10
1
SENDET
11
0LOCK2
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