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參數(shù)資料
| 型號： | LC74723 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | On-Screen Display Controller |
| 中文描述： | 屏幕顯示控制器 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 144K |
| 代理商： | LC74723 |
Display Control Commands
Display control commands are input as serial data in 8-bit units. Commands consist of a first byte that includes the
command identifier code and data in the following second byte. The LC74723 supports the following six commands.
1. COMMAND0: Set display memory (VRAM) write address
2. COMMAND1: Set up display character data write
3. COMMAND2: Set vertical display start position and vertical character size
4. COMMAND3: Set horizontal display start position and horizontal character size
5. COMMAND4: Display control
6. COMMAND5: Display control
Display Control Command Table
Once written, the command identifier 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 LC74723 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 LC74723 is set to COMMAND0 (display memory write address setting
mode).
1. COMMAND0 (Display memory write address setting command)
First byte
No. 4841-6/12
LC74723, 74723M
First byte
Second byte
Command
Command identifier 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
COMMAND 2 (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 (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 ERS
RAM
OSC
STP
SYS
RST
0
EGL
NON
EG
BK
1
BK
0
RV
DSP
ON
COMMAND5
(Synchronization signal control)
1
1
0
1
0
PH
RSN
INT
—
—
—
—
—
—
—
—
DA
0 to 7
Register
name
Contents
Remarks
State
Function
7
—
1
6
—
0
Command 0 identification code
Set display memory write address.
5
—
0
4
—
0
3
V3
0
1
2
V2
0
1
Display memory address (0 to 9 hexadecimal)
1
V1
0
1
0
V0
0
1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC74723M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
| LC74723M9141 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC74723M9629 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC74725 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
| LC74725M | 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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