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R61509V Target Spec
Rev. 0.11 April 25, 2008, page 76 of 181
GRAM Data Write (R202h)
R/W RS
W 1
RAM write data WD[17:0] is transferred via different data bus in different interface operation.
RGB
interface
RAM write data WD[17:0] is transferred via different data bus in different interface operation.
WD[17:0]:
The R61509V develops data into 18 bits internally in write operation. The format to develop
data into 18 bits is different in different interface operation.
The GRAM data represents the grayscale level. The R61509V automatically updates the address according
to AM and ID[1:0] settings as it writes data in the GRAM. The DFM bit sets the format to develop 16-bit
data into the 18-bit data in 16-bit or 8-bit interface operation.
Note: When writing data in the GRAM via system interface while using the RGB interface, make sure
that write operations via two interfaces that do not conflict one another.