r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 949

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

19.3.51 Color Palette 4 Register 000 to 255 (CP4_000R to CP4_255R)
The color palette 4 registers 000 to 255 (CP4_000R to CP4_255R) are a group of 256 registers
which set six bits for each of the RGB components of a color, and are used as a color palette
capable of displaying 256 colors among 260,000 possible colors. Bits 31 to 24 are used as a blend
ratio. The values are valid for 8 bits/pixel data display.
For details of color palette operation, refer to section 19.4.8, Color Palettes.
Values are retained during power-on reset and manual reset.
Internal update:
Internal update:
Bit
9, 8
7 to 2
1, 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name
⎯
CP3_000B to
CP3_255B
⎯
R/W
R/W
31
15
—
—
O
O
R/W
R/W
30
14
—
—
O
O
CP4_000G to CP4_255G
Initial
Value
All 0
Undefined R/W
All 0
R/W
R/W
29
—
13
—
O
O
CP4_000A to CP4_255A
R/W
R/W
28
12
—
—
O
O
R/W
R
R
R/W
R/W
27
11
—
—
O
O
R/W
R/W
26
10
Internal
Update
⎯
Yes
⎯
—
—
O
O
R/W
25
—
—
O
R
9
0
Description
Reserved
These bits are always read as 0. The write
value should always be 0.
Color Palette 3_000 to 255 Blue
Blue-color data of color palette 3 should be set.
Reserved
These bits are always read as 0. The write
value should always be 0.
R/W
24
—
—
O
R
8
0
R/W
R/W
23
—
—
O
O
7
Rev.1.00 Jan. 10, 2008 Page 919 of 1658
R/W
R/W
22
—
—
O
O
6
CP4_000R to CP4_255R
CP4_000B to CP4_255B
R/W
R/W
21
—
—
O
O
5
R/W
R/W
20
—
—
O
O
4
R/W
R/W
19. Display Unit (DU)
19
—
—
O
O
3
REJ09B0261-0100
R/W
R/W
18
—
—
O
O
2
17
—
—
R
R
0
1
0
16
—
—
R
R
0
0
0