參數(shù)資料
型號(hào)： LC74725
廠商： Sanyo Electric Co.,Ltd.
英文描述： On-Screen Display Controller LSI
中文描述： 屏幕顯示控制器芯片
文件頁(yè)數(shù)： 8/16頁(yè)
文件大小： 260K
代理商： LC74725
No. 5213-8/16
LC74725, 74725M
Display Control Commands
Display control commands have an 8-bit format and are transferred using the serial input function. Commands consist of
a command identification code in the first byte and command data in the following bytes. The following commands are
supported.
x
COMMAND0: Display memory (VRAM) write address setup command
y
COMMAND1: Display character data write command
z
COMMAND2: Vertical display start position and vertical character size setup command
{
COMMAND3: Horizontal display start position and horizontal character size setup command
|
COMMAND4: Display control setup command
}
COMMAND5: Display control setup command
Display Control Command Table
Once written, the command identification code in the first byte is stored until the next first byte is written. However,
when the display character data write command (COMMAND1) is written, the LC74725/M locks into the display
character data write mode, and another first byte cannot be written.
When a high level is input to the CS pin, the LC74725/M is set to COMMAND0 (display memory write address setup
mode).
x
COMMAND0 (Display memory write address setup command)
First byte
First byte
Second byte
Command
Command identification code
Data
Data
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
COMMAND0
Set write address
1
0
0
0
V3
V2
V1
V0
0
0
0
H4
H3
H2
H1
H0
COMMAND1
Write character
1
0
0
1
0
0
0
0
at
0
c5
c4
c3
c2
c1
c0
COMMAND2
Set vertical display start position and
vertical character size
1
0
1
0
0
VS
20
0
VS
10
0
FS
VP
5
VP
4
VP
3
VP
2
VP
1
VP
0
COMMAND3
Set horizontal display start position
and horizontal character size
1
0
1
1
EGP
HS
20
0
HS
10
0
LC
HP
5
HP
4
HP
3
HP
2
HP
1
HP
0
COMMAND4
Display control
1
1
0
0
TST
MOD
RAM
ERS
OSC
STP
SYS
RST
0
EGL
NON
EG
BK
1
BK
0
RV
DSP
ON
COMMAND5
Synchronizing signal control
1
1
0
1
BCL
PH
RSN
INT
0
0
0
MUT
MOD
0
CTL
3
CTL
2
SEL
0
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
1
6
—
0
Command 0 identification code
Set the display memory write address.
5
—
0
4
—
0
3
V3
0
1
2
V2
0
1
Display memory row address (0 to 9 hexadecimal)
1
V1
0
1
0
V0
0
1
相關(guān)PDF資料
PDF描述
LC74725M On-Screen Display Controller LSI
LC7472 On-screen Video Display Controller for NTSC or PAL-M
LC7472M On-screen Video Display Controller for NTSC or PAL-M
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC74725M 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI
LC7472M 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-screen Video Display Controller for NTSC or PAL-M
LC7472NM9048 制造商:Panasonic Industrial Company 功能描述:IC
LC7472NM9056 制造商:Panasonic Industrial Company 功能描述:IC
LC74730M 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI
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