Renesas SH7781 用户手册
19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 936 of 1658
REJ09B0261-0100
REJ09B0261-0100
19.4.4
Memory Allocation
A display start address for the display screen can be set individually for each plane. Leading
addresses for the memory areas used are set in each of the display area start address registers.
addresses for the memory areas used are set in each of the display area start address registers.
In the display unit (DU), the display area start addresses 0 and 1 are used for each plane to
perform double-buffer control and display each plane.
perform double-buffer control and display each plane.
Below is a list of display area start address registers used for each of the planes.
Table 19.7 Memory Allocation Registers
Display Plane Setting Register Name
Plane 1 display area start address register 0
P1DSA0
Plane 1
Plane 1 display area start address register 1
P1DSA1
Plane 2 display area start address register 0
P2DSA0
Plane 2
Plane 2 display area start address register 1
P2DSA1
Plane 3 display area start address register 0
P3DSA0
Plane 3
Plane 3 display area start address register 1
P3DSA1
Plane 4 display area start address register 0
P4DSA0
Plane 4
Plane 4 display area start address register 1
P4DSA1
Plane 5 display area start address register 0
P5DSA0
Plane 5
Plane 5 display area start address register 1
P5DSA1
Plane 6 display area start address register 0
P6DSA0
Plane 6
Plane 6 display area start address register 1
P6DSA1