Renesas R61509V 用户手册
R61509V
Target
Spec
Rev. 0.11 April 25, 2008, page 154 of 181
VCOMH and VREG1OUT Voltage Adjustment Sequence
When adjusting the VCOMH voltage by setting VCM[6:0] (R280h, internal VCOMH level adjustment
circuit), follow the sequence below.
circuit), follow the sequence below.
The R61509V can retain permanently the VREG1OUT and VCOMH level adjustment setting values in
NVM.
NVM.
To write data to NVM, see “NVM Control” and NVM Write Sequence”.
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Display ON Sequence
Complete the VCOMH level adjustment.
The display on the panel will
flicker when the VCOMH
level is adjusted internally.
flicker when the VCOMH
level is adjusted internally.
Set NVDAT[15] to 1.
NVM (1)
NVM Data Write Register
Set write data.
Adjust VCOMH
level
level
Set NVDAT[3:0] to the value set in
UID[7:0]. Then, write data to NVM.
UID[7:0]. Then, write data to NVM.
Check the display
quality.
quality.
Set NVDAT[10:4] to the value set in the
VCM[6:0] after VCOMH level
adjustment. Then, write data to NVM.
VCM[6:0] after VCOMH level
adjustment. Then, write data to NVM.
VCOM level adjustment
R280h: VCM[6:0]
Set VCM[6:0] adjustment
value.
R280h: VCM[6:0]
Set VCM[6:0] adjustment
value.
Figure 65