Command Table
R/W# D/C# Hex D7
D6
D5
D4
D3 D2
D1 D0
Command
Description
0
0
2B
0
0
1
0
1
0
1
1
Write Register for
VCOM Control
This command is used to reduce glitch
when ACVCOM toggle. Two data bytes
D04h and D63h should be set for this
command.
0
1
0
0
0
0
0
1
0
0
0
1
0
1
1
0
0
0
1
1
0
0
2C
0
0
1
0
1
1
0
0
Write VCOM register
W
rite VCOM register from MCU interface
A[7:0] = 00h [POR]
0
1
A7
A6
A5
A4
A3 A2
A1 A0
A[7:0] VCOM A[7:0] VCOM
08h
-0.2
58h
-2.2
0Ch
-0.3
5Ch
-2.3
10h
-0.4
60h
-2.4
14h
-0.5
64h
-2.5
18h
-0.6
68h
-2.6
1Ch
-0.7
6Ch
-2.7
20h
-0.8
70h
-2.8
24h
-0.9
74h
-2.9
28h
-1
78h
-3
2Ch
-1.1
7Ch
-3.1
30h
-1.2
80h
-3.2
34h
-1.3
84
-3.3
38h
-1.4
88
-3.4
3Ch
-1.5
8C
-3.5
40h
-1.6
90
-3.6
44h
-1.7
94
-3.7
48h
-1.8
98
-3.8
4Ch
-1.9
9C
-3.9
50h
-2
A0
-4
54h
-2.1
0
0
2D
0
0
1
0
1
1
0
1
OTP Register Read for
Display Option
Read Register for Display Option:
A[7:0]: VCOM OTP Selection
(Command 0x37, Byte A)
B[7:0]: VCOM Register
(Command 0x2C)
C[7:0]~G[7:0]: Display Mode
(Command 0x37, Byte B to Byte G)
[5 bytes]
H[7:0]~K[7:0]: Waveform Version
(Command 0x37, Byte H to Byte K)
[4 bytes]
1
1
A7
A6
A5
A4
A3 A2
A1 A0
1
1
B7
B6
B5
B4
B3 B2
B1 B0
1
1
C7
C6
C5
C4
C3 C2
C1 C0
1
1
D7
D6
D5
D4
D3 D2
D1 D0
1
1
E7
E6
E5
E4
E3
E2
E1
E0
1
1
F7
F6
F5
F4
F3
F2
F1
F0
1
1
G7
G6
G5
G4
G3 G2
G1 G0
1
1
H7
H6
H5
H4
H3 H2
H1 H0
1
1
I7
I6
I5
I4
I3
I2
I1
I0
1
1
J7
J6
J5
J4
J3
J2
J1
J0
1
1
K7
K6
K5
K4
K3 K2
K1 K0
GDEH075Z90
28
/
38
7.5 inch Series
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