Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
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Page 182 of 233
8.3.19. VCOM Control 2(C7h)
C7h VMCTRL1 (VCOM Control 1)
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 1 1 0 0 0 1 1 1 C7h
Parameter 1 1 ↑ XX nVM VMF [6:0] C0
Description
nVM: nVM equals to “0” after power on reset and VCOM offset equals to program MTP value. When nVM set to “1”, setting
of VMF [6:0] becomes valid and VCOMH/VCOML can be adjusted.
VMF [6:0]: Set the VCOM offset voltage.
VMF[6:0] VCOMH VCOML VMF[6:0] VCOMH VCOML
0000000 VMH VML 1000000 VMH VML
0000001 VMH – 63 VML – 63 1000001 VMH + 1 VML + 1
0000010 VMH – 62 VML – 62 1000010 VMH + 2 VML + 2
0000011 VMH – 61 VML – 61 1000011 VMH + 3 VML + 3
0000100 VMH – 60 VML – 60 1000100 VMH + 4 VML + 4
0000101 VMH – 58 VML – 58 1000101 VMH + 5 VML + 5
0000110 VMH – 58 VML – 58 1000110 VMH + 6 VML + 6
0000111 VMH – 57 VML – 57 1000111 VMH + 7 VML + 7
0001000 VMH – 56 VML – 56 1001000 VMH + 8 VML + 8
0001001 VMH – 55 VML – 55 1001001 VMH + 9 VML + 9
0001010 VMH – 54 VML – 54 1001010 VMH + 10 VML + 10
0001011 VMH – 53 VML – 53 1001011 VMH + 11 VML + 11
0001100 VMH – 52 VML – 52 1001100 VMH + 12 VML + 12
0001101 VMH – 51 VML -51 1001101 VMH + 13 VML + 13
0001110 VMH – 50 VML – 50 1001110 VMH + 14 VML + 14
0001111 VMH – 49 VML – 49 1001111 VMH + 15 VML + 15
0010000 VMH – 48 VML – 48 1010000 VMH + 16 VML + 16
0010001 VMH – 47 VML – 47 1010001 VMH + 17 VML + 17
0010010 VMH – 46 VML – 46 1010010 VMH + 18 VML + 18
0010011 VMH – 45 VML – 45 1010011 VMH + 19 VML + 19
0010100 VMH – 44 VML – 44 1010100 VMH + 20 VML + 20
0010101 VMH – 43 VML – 43 1010101 VMH + 21 VML + 21
0010110 VMH – 42 VML – 42 1010110 VMH + 22 VML + 22
0010111 VMH – 41 VML – 41 1010111 VMH + 23 VML + 23
0011000 VMH – 40 VML – 40 1011000 VMH + 24 VML + 24
0011001 VMH – 39 VML – 39 1011001 VMH + 25 VML + 25
0011010 VMH – 38 VML – 38 1011010 VMH + 26 VML + 26
0011011 VMH – 37 VML – 37 1011011 VMH + 27 VML + 27
0011100 VMH – 36 VML – 36 1011100 VMH + 28 VML + 28
0011101 VMH – 35 VML – 35 1011101 VMH + 29 VML + 29
0011110 VMH – 34 VML – 34 1011110 VMH + 30 VML + 30
0011111 VMH – 33 VML – 33 1011111 VMH + 31 VML + 31
0100000 VMH – 32 VML – 32 1100000 VMH + 32 VML + 32
0100001 VMH – 31 VML – 31 1100001 VMH + 33 VML + 33
0100010 VMH – 30 VML – 30 1100010 VMH + 34 VML + 34
0100011 VMH – 29 VML – 29 1100011 VMH + 35 VML + 35
0100100 VMH – 28 VML – 28 1100100 VMH + 36 VML + 36
0100101 VMH – 27 VML – 27 1100101 VMH + 37 VML + 37
0100110 VMH – 26 VML – 26 1100110 VMH + 38 VML + 38
0100111 VMH – 25 VML – 25 1100111 VMH + 39 VML + 39
0101000 VMH – 24 VML – 24 1101000 VMH + 40 VML + 40
0101001 VMH – 23 VML – 23 1101001 VMH + 41 VML + 41
0101010 VMH – 22 VML – 22 1101010 VMH + 42 VML + 42
0101011 VMH – 21 VML – 21 1101011 VMH + 43 VML + 43
0101100 VMH – 20 VML – 20 1101100 VMH + 44 VML + 44
0101101 VMH – 19 VML – 19 1101101 VMH + 45 VML + 45
0101110 VMH – 18 VML – 18 1101110 VMH + 46 VML + 46
0101111 VMH – 17 VML – 17 1101111 VMH + 47 VML + 47
0110000 VMH – 16 VML – 16 1110000 VMH + 48 VML + 48
0110001 VMH – 15 VML – 15 1110001 VMH + 49 VML + 49
0110010 VMH – 14 VML – 14 1110010 VMH + 50 VML + 50
0110011 VMH – 13 VML – 13 1110011 VMH + 51 VML + 51
0110100 VMH – 12 VML – 12 1110100 VMH + 52 VML + 52