LC74798 Просмотр технического описания (PDF) - SANYO -> Panasonic
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LC74798 Datasheet PDF : 32 Pages
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LC74798, 74798M
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 to COMMAND12: Display control setup commands
9 COMMAND13 to COMMAND17: VPS/PDC control commands
Display Control Command Table
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
1
0
0
0 V3 V2 V1 V0 0
0
0 H4 H3 H2 H1 H0
(Write address setup)
COMMAND1
1
0
0
1
0
0
0
0
at c6 c5 c4 c3 c2 c1 c0
(Character write)
COMMAND2 (Vertical character size 1
0
1
0 VS VS VS VS 0 FS VP VP VP VP VP VP
and vertical display start position)
21 20 11 10
5
4
3
2
1
0
COMMAND3 (Horizontal character size 1
0
1
1 HS HS HS HS 0
0 HP HP HP HP HP HP
and horizontal display start position)
21 20 11 10
5
4
3
2
1
0
COMMAND4
1
1
0
0 TST RAM OSC SYS 0 BLK BLK BLK BK BK RV DSP
(Display control)
MOD ERS STP RST
2
1
0
1
0
ON
COMMAND5
1
1
0
1 NP1 NP0 NON INT 0 RSH HLF BCL CB PH PH PH
(Display control)
LV2 INT
2
1
0
COMMAND6
1
1
1
0 SEL MOD DIS MUT 0 RN RN RN SN SN SN SN
(Synchronizing signal detection)
0
0 LIN
2
1
0
3
2
1
0
COMMAND7
1
1
1
1
0
0
0
0
0 CIN CIN VNP VSP MSK MSK EGL
(Display control)
SEL CTL SEL SEL ERS SEL
COMMAND8
1
1
1
1
0
0
0
1
0 LNA LNA LNA LNA LPA LPA LPA
(Display control)
3
2
1
0
2
1
0
COMMAND9
1
1
1
1
0
0
1
0
0 LNB LNB LNB LNB LPB LPB LPB
(Display control)
3
2
1
0
2
1
0
COMMAND10
1
1
1
1
0
0
1
1
0 LNC LNC LNC LNC LPC LPC LPC
(Display control)
3
2
1
0
2
1
0
COMMAND11
1
1
1
1
0
1
0
0
0
0 VSP VSP LNC MOD LNB MOD
(Display control)
DCK SLC SEL 3 SEL 2
COMMAND12
1
1
1
1
0
1
0
1
0 VIN VIN SEL HLF SEL SEL CTL
(Display control)
NP 2 22 TON 2
1
3
COMMAND13
1
1
1
1
0
1
1
0
0 CPA CPA 0 VPM VPM VPM VPM
(VPS/PDC control)
1
0
3
2
1
0
COMMAND14
1
1
1
1
0
1
1
1
0 VMW VMW HBS HBS BMS EMS DCE
(VPS/PDC control)
SE2 SEL 2
1
COMMAND15
1
1
1
1
1
0
0
0
0
0 ECV ECV ECV ECV ECV ECV
(VPS/PDC control)
15 14 13 12 11 5
COMMAND16
1
1
1
1
1
0
0
1
0 ECP ECP ECP ECP ECP ECP ECP
(VPS/PDC control)
19 18 17 16 15 14 13
COMMAND17
1
1
1
1
1
0
1
0
0
0 ECP ECP ECP ECP ECP ECP
(VPS/PDC control)
25 24 23 22 21 20
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 LC74798/M locks into the display character data write mode, and another first byte cannot be written.
When the CS pin is set high, the LC74798/M is set to the COMMAND0 (display memory write address setup mode) state.
No. 5833-8/32
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