a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9325
Set I/D AM, HAS/HEA, VSA/VEA
Set address M
Dummy read (invalid data)
GRAM -> Read data latch
Read Output (data of address M)
Read datalatch -> DB[17:0]
Read Output (data of address M+1)
Read datalatch -> DB[17:0]
Set address N
Dummy read (invalid data)
GRAM -> Read data latch
Read Output (data of address N)
Read datalatch -> DB[17:0]
Figure 31 GRAM Data Read Back Flow Chart
8.2.21. Power Control 7 (R29h)
R/W
RS
D15 D14
D13 D12 D11
D10
D9
D8 D7
D6
D5
D4
D3
D2
D1
D0
W
1
0
0
0
0
0
0
0
0
0
0
VCM5 VCM4 VCM3 VCM2 VCM1 VCM0
VCM[5:0] Set the internal VcomH voltage.
VCM5 VCM4 VCM3 VCM2 VCM1 VCM0
VCOMH
VREG1OUT
0.685
VREG1OUT
0.690
VREG1OUT
0.695
VREG1OUT
0.700
VCM5 VCM4 VCM3VCM2 VCM1 VCM0
VCOMH
x
x
x
x
x
VREG1OUT
0.845
VREG1OUT
0.850
VREG1OUT
0.855
VREG1OUT
0.860
x
x
x
x
x
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
1
1
0
1
0
1
1
0
0
0
0
0
1
1
0
1
0
VREG1OUT
VREG1OUT
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