Renesas R61509V User Manual
Page 78
R61509V
Target
Spec
Rev. 0.11 April 25, 2008, page 78 of 181
NVM Data Read / NVM Data Write (R280h)
UID[3:0]: Used to temporarily store NVM data such as used identification code.
The write data is loaded to NVM data write register (NVDAT [7:0]) and then is written to NVM.
NVM data is loaded to UID[7:0] when power on reset, when shutdown mode is exited or when CALB=1 is
written. When NVM data write is not executed, UID[7:0] = 8’hFF (Default).
VCM[6:0]: Used to control VCOMH.
To use NVM data to adjust VCOMH, specify the VCOMH level using VCM [6:0], write the same value to
the NVM data write register NVDAT [14:8] (R6F1h) and then write the data to NVM.
NVM data is loaded to VCM[6:0] when power on reset, when shutdown mode is exited or when CALB=1
is written. When NVM data write is not executed, VCM[6:0]= 7’h7F (Default).
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9
IB8
IB7
IB6
IB5
IB4
IB3 IB2 IB1 IB0
R
280h
R/W 1 1
VC
M
[6]
VC
M
[5]
VC
M
[4]
VC
M
[3]
VC
M
[2]
VC
M
[1]
VC
M
[0]
UID
[7]
UID
[6]
UID
[5]
UID
[4]
UID
[3]
UID
[2]
UID
[1]
UID
[0]
Default
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1