Renesas R61509V - Manual (Page 42)

R61509V Target Spec
Rev. 0.11 April 25, 2008, page 42 of 181
LCD Drive Wave Control (R002h)
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
R/W 1 0 0 0 0 0 0 0 BC 0 0 0 0 0 0 0 0
Default value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BC: Selects the liquid crystal drive waveform VCOM.
BC = 0: frame inversion waveform is selected.
BC = 1: line inversion waveform is selected.
Entry Mode (R003h)
The entry mode registers include instruction bits for setting how to write data from the microcomputer to
the internal GRAM of the R61509V.
AM: Sets either horizontal or vertical direction in updating the address counter automatically as the
R61509V writes data to the internal GRAM.
AM = “0”, sets the horizontal direction.
AM = “1”, sets the vertical direction.
When specifying window address area, the data is written only within the area in the direction determined
by ID and AM bits.
ID[1:0]: Either increments (+1) or decrements (-1) the address counter (AC) automatically as the data is
written to the GRAM. The ID[0] bit sets either increment or decrement in horizontal direction (updates the
address AD[7:0]). The ID[1] bit sets either increment or decrement in vertical direction (updates the
address AD[8:16]). The AM bit sets either horizontal or vertical direction in updating RAM address
counter automatically when writing data to the internal RAM.
ORG: Moves the origin address according to the ID setting when a window address area is described. This
function is enabled when executing burst data transfer within the window address area.
ORG = 0: The origin address is not moved. In this case, specify the address to start write
operation according to the GRAM address map within the window address area.
ORG = 1: The origin address “h00000” is moved according to the ID[1:0] setting.
Notes: 1. When ORG = 1, the origin address can be set only at “h00000”.
2. In RAM read operation, make sure to set ORG = 0.
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
R/W 1 TRI
DF
M
0 BGR 0 0 0 0
OR
G
0
ID
[1]
ID
[0]
AM 0 0 0
Default value 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0