SH7720 Datasheet, PDF (940/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 26 LCD Controller (LCDC)
26.3.8 LCDC Palette Control Register (LDPALCR)
LDPALCR selects whether the CPU or LCDC accesses the palette memory. When the palette
memory is being used for display operation, display mode should be selected. When the palette
memory is being written to, color-palette setting mode should be selected.
Bit
15 to 5
4
3 to 1
0
Bit Name

PALS

PALEN
Initial Value R/W
All 0
R
0
R
All 0
R
0
R/W
Description
Reserved
These bits always read as 0. The write value should
always be 0.
Palette State
Indicates the access right state of the palette.
0: Display mode: LCDC uses the palette
1: Color-palette setting mode: The host (CPU) uses
the palette
Reserved
These bits are always read as 0. The write value
should always be 0.
Palette Read/Write Enable
Requests the access right to the palette.
0: Request for transition to normal display mode
1: Request for transition to color palette setting mode
Rev. 3.00 Jan. 18, 2008 Page 878 of 1458
REJ09B0033-0300