
No. 7545-10/52
LC74735NW
Display Control Command Table
Display Control Commands
The display control commands have serial input format that consists of 8-bit units transmitted LSB first. A commands
consists of a command identification code in the first byte and data in the second and following bytes. Both a first byte
and a second byte (16 bits) must be transmitted for each command. Commands 10, 11, and 71 set the IC to continuous
write mode. (Continuous write mode is cleared by setting the CS pin high.)
First byte
Second byte
Command
Command identification code
Data
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Command00 (Write address)
1
0
V3
V2
V1
V0
H5
H4
H3
H2
H1
H0
Main
Command01 (Write address)
1
0
1
0
SV0
0
SH0
Sub (Wallpaper)
1
0
1
0
RM2 RM1(1)
0
at
BXS
BXL
BXR
BXU
BXD
Command 10 (Character write)
(2) CB3
CB2
CB1
CB0
CC3
CC2
CC1
CC0
Main
(3)
0
CT0
I/E
M/G
C10
C9
C8
(4)
C7
C6
C5
C4
C3
C2
C1
C0
1
0
1
0
1
RM2 RM1(1)
0
Command 11 (Character write)
(2)
0
Sub (Wallpaper)
(3)
0
CT0
I/E
M/G
C10
C9
C8
(4)
C7
C6
C5
C4
C3
C2
C1
C0
Command20 (System control)
1
0
1
0
TSTMD2 TSTMD1 Q/W2 Q/W1 SYSRST CTERS SRMERS MRMERS
Command21 (Display control)
1
0
1
0
1
LCSOFF BK1
BK0
SBG1 SBG0 DSPBG DSPGS DSPGM
Command22 (I/O polarity control 1)
1
0
1
0
1
0
BLD1 BLO0 BLOP BLO1 BLO0
CKP
VIP
HIP
Command23 (Screen background color)
1
0
1
0
1
0
BGCT1 BGCT0 BGC3 BGC2 BGC1 BGC0
Command24 (I/O polarity control 2)
1
0
1
0
1
0
DSPMD1 DSPMD0 DASEL VBLKON HBLKON CKOP VBP
HBP
Command25 (Output control)
1
0
1
0
1
0
1
CEHSL TOKSL VIPSL OTM2 OTM1 OTM0 QRM1 QRM0
Command30
1
0
1
0
VPM7 VPM6 VPM5 VPM4 VPM3 VPM2 VPM1 VPM0
(Vertical display start position: main)
Command31
1
0
1
0
1
HPM8 HPM7 HPM6 HPM5 HPM4 HPM3 HPM2 HPM1 HPM0
(Horizontal display start position: main)
Command32
1
0
1
0
1
0
VPS7 VPS6 VPS5 VPS4 VPS3 VPS2 VPS1 VPS0
(Vertical display start position: sub)
Command33
1
0
1
0
1
HPS8 HPS7 HPS6 HPS5 HPS4 HPS3 HPS2 HPS1 HPS0
(Horizontal display start position: sub)
Command34
1
0
1
0
VPG7 VPG6 VPG5 VPG4 VPG3 VPG2 VPG1 VPG0
(Vertical display start position: screen)
Command35
1
0
1
0
1
HPG8 HPG7 HPG6 HPG5 HPG4 HPG3 HPG2 HPG1 HPG0
(Horizontal display start position: screen)
Command40
1
0
SZV1
SZV0
SZH1
SZH0
(Character size control)
Command41
1
0
1
0
LSZ7
LSZ6
LSZ5
LSZ4
LSZ3
LSZ2
LSZ1
LSZ0
(Character size control: line setting U)
Command42
1
0
1
0
LSZ15 LSZ14 LSZ13 LSZ12 LSZ11 LSZ10 LSZ9
LSZ8
(Character size control: line setting D)
Command50
1
0
1
0
BXUW BXLW
0
BXUCT0 BXUC3 BXUC2 BXUC1 BXUC0
(Box control U)
Command51
1
0
1
0
1
0
BXDW BXRW
0
BXDCT0 BXDC3 BXDC2 BXDC1 BXDC0
(Box control D)
Command52
1
0
1
0
LBX7
LBX6
LBX5
LBX4
LBX3
LBX2
LBX1
LBX0
(Box control: line setting U)
Command53
1
0
1
0
LBX15 LBX14 LBX13 LBX12 LBX11 LBX10 LBX9
LBX8
(Box control: line setting D)
Command60
1
0
BLK1
BLK0
0
EGCT0 EGC3 EGC2 EGC1 EGC0
(Border control)
Command61
1
0
1
0
LFC7
LFC6
LFC5
LFC4
LFC3
LFC2
LFC1
LFC0
(Border control: line setting U)
Command62
1
0
1
0
LFC15 LFC14 LFC13 LFC12 LFC11 LFC10 LFC9
LFC8
(Border control: line setting D)
Command70 (Write address)
1
0
CTN1 CTA3
CTA2
CTA1
CTA0
Color table
Command71 (Data write)
1
0
1
0
RMB(1)
0
TCK
TB2
TB1
TB0
Color table
(2)
0
TG2
TG1
TG0
TR2
TR1
TR0