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LC74788 View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
Manufacturer
LC74788
SANYO
SANYO -> Panasonic SANYO
LC74788 Datasheet PDF : 23 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
LC74788, 74788M, 74788JM
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.
1 COMMAND0: Display memory (VRAM) write address setup command
2 COMMAND1: Display character data write command
3 COMMAND2: Vertical display start position and vertical character size setup command
4 COMMAND3: Horizontal display start position and horizontal character size setup command
5 COMMAND4: Display control setup command
6 COMMAND5: Display control setup command
7 COMMAND6: Synchronizing signal detection setup command
8 COMMAND7: Display control setup command
9 COMMAND8: Display control setup command
10 COMMAND9: Display control setup command
11 COMMAND10: Display control setup command
Display Control Command Table
Command
COMMAND0
Write address setup
COMMAND1
Character write
COMMAND2
Vertical character size and vertical
display start position
COMMAND3
Horizontal character size and
horizontal display start position
COMMAND4
Display control
COMMAND5
Display control
COMMAND6
Synchronizing signal detection
COMMAND7
Display control
COMMAND8
Display control
COMMAND9
Display control
COMMAND10
Display control
First byte
Second byte
Command identification code
Data
Data
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
1
0
0
0 V3 V2 V1 V0 0
0
0 H4 H3 H2 H1 H0
1
0
0
1
0
0
0
at c7 c6 c5 c4 c3 c2 c1 c0
1
0
1
0 VS VS VS VS 0 FS VP VP VP VP VP VP
21 20 11 10
5
4
3
2
1
0
1
0
1
1 HS HS HS HS 0 LC HP HP HP HP HP HP
21 20 11 10
5
4
3
2
1
0
1
1
0
0 TST RAM OSC SYS 0 BLK BLK BLK BK BK RV DSP
MOD ERS STP RST
2
1
0
1
0
ON
1
1
0
1 NP NP NON INT 0 NP HLF BCL CB PH PH PH
1
0
2 INT
2
1
0
1
1
1
0 SEL MOD DIS MUT 0 RN RN RN SN SN SN SN
0
0 LIN
2
1
0
3
2
1
0
1
1
1
1
0
0 SEL CTL 0 CIN CIN VNP VSP MSK MSK EGL
1
3
SEL CTL SEL SEL ERS SEL
1
1
1
1
0
1 VSY HSY 0 LNA LNA LNA LNA LPA LPA LPA
SEL SEL
3
2
1
0
2
1
0
1
1
1
1
1
0 LNB MOD 0 LNB LNB LNB LNB LPB LPB LPB
SEL 2
3
2
1
0
2
1
0
1
1
1
1
1
1 LNC MOD 0 LNC LNC LNC LNC LPC LPC LPC
SEL 3
3
2
1
0
2
1
0
Once written, a first byte command identification code is stored until the next first byte is written. However, when the
display character data write command (COMMAND1) is written, the LC74788/M/JM locks into the display character
data write mode, and another first byte cannot be written.
When the CS pin is set high, the LC74788/M/JM is set to the COMMAND0 (display memory write address setup mode)
state.
No. 5731-8/23
 

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