Datasheet

ST7735
V1.7 140 2009-12-04
10.2.12 VMOFCTR (C7h): VCOM Offset Control
C7H VMOFCTR (VCOM Offset Control)
Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
VMOFCTR 0 ↑ 1 - 1 1 0 0 0 1 1 1 (C7h)
Parameter 1 ↑ 1 - - - - VMF4 VMF3 VMF2 VMF1 VMF0
Description
-Set VCOM Voltage level for reduce the flicker issue
VMF (hex) VMF[4:0] VCOMH,VCOML Output Level
00h 00000 “VMH” -16d,”VML”-16d
01h 00001 “VMH”-15d, “VML”-15d
02h 00010 “VMH”-14d, “VML”-14d
| | |
0Eh 01110 “VMH”-2d, “VML”-2d
0Fh 01111 “VMH”-1d, “VML”-1d
10h 10000 “VMH”, “VML”
11h 10001 “VMH”+1d, “VML”+1d
12h 10010 “VMH”+2d, “VML”+2d
| | |
1Eh 11110 “VMH”+14d, “VML”+14d
1Fh 11111 “VMH”+15d, “VML”+15d
- 1d=25mV, 2d=50mV 3d=75mv....
- 2.5V <= VMH ± nd <= 5.0V; -2. 5V <= VML ± nd<= 0V (n=0~15,16)
Restriction
-If this register not using the register need be reserved.
Register
Availability
Status Availability
Normal Mode On, Idle Mode Off, Sleep Out Yes
Normal Mode On, Idle Mode On, Sleep Out Yes
Partial Mode On, Idle Mode Off, Sleep Out Yes
Partial Mode On, Idle Mode On, Sleep Out Yes
Sleep In Yes
Default
Status Default Value
C7h
Power On Sequence F0h
S/W Reset F0h
H/W Reset F0h
Flow Chart