Renesas SH7781 User Manual
Page 965
19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 935 of 1658
REJ09B0261-0100
Table 19.6 Memory Parameter/ Monitor Parameter Setting Registers
No.
Names Used in the
Figure
Setting
Registers Description
1 MWX
(Plane memory width)
PnMWR
The plane X-direction memory width is set
between 16 and 4096 pixels, in 16 pixel units.
2 DSA
(Display area start
address)
PnDSA0R and
PnDSA1R
The start address in memory area is set for
plane n.
3 WASPY
(Plane n wrap-around start
position)
PnWASPR
The Y direction start position of the plane n
wrap-around area is set in raster line units,
with the address set by DSA as reference.
4 WAMWY
(Wraparound memory
width)
PnWAMWR
The wrap-around Y-direction memory width is
set arbitrarily in the range 240 to 4095 lines.
5 SPX
(Start position X)
PnSPXR
The distance in the X direction to the display
start position is set in pixel units, taking the
address set by DSA as the origin.
6 SPY
(Start position Y)
PnSPYR
The distance in the Y direction to the display
start position is set in raster line units, taking
the address set by DSA as the origin.
7 DSX
(Display size X)
PnDSXR
The X-direction display size of plane n is set in
pixel units.
8 DSY
(Display size Y)
PnDSYR
The Y-direction display size of plane n is set in
raster line units.
9 DPX
(Display position X)
PnDPXR
The X-direction distance to the display position
is set in pixel units, taking the upper-left corner
of monitor as the origin.
10 DPY
(Display position Y)
PnDPYR
The Y-direction distance to the display position
is set in raster line units, taking the upper-left
corner of monitor as the origin.
11 MLY
(Memory length Y)
PnMLR
The Y-direction memory area of plane n is set
in raster line units.