r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 940

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

19. Display Unit (DU)
19.3.43 Plane n Wrap Around Memory Width Register (PnWAMWR) (n = 1 to 6)
The plane n wrap-around memory width registers (PnWAMWR, n = 1 to 6) set the wrap-around
Y-direction memory width for plane n. The value is retained during power-on reset and manual
reset.
Internal update:
Internal update:
Rev.1.00 Jan. 10, 2008 Page 910 of 1658
REJ09B0261-0100
Bit
31 to 12 ⎯
11 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name
PnWAMWY
31
15
—
—
R
R
0
0
30
—
14
—
R
R
0
0
Initial
Value
All 0
Undefined R/W
29
13
—
—
R
R
0
0
28
12
—
—
R
R
0
0
R/W
R
R/W
27
11
—
—
O
R
0
Internal
Update
⎯
Yes
R/W
26
10
—
—
O
R
0
R/W
25
—
—
R
O
0
9
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Plane n Wrap Around Memory Width Y
The wrap-around Y-direction memory width
should be set in the range 240 to 4095 raster
lines, in raster line units.
R/W
24
—
—
R
O
0
8
R/W
23
—
—
R
O
0
7
R/W
PnWAMWY
22
—
—
O
R
0
6
R/W
21
—
—
O
R
0
5
R/W
20
—
—
R
O
0
4
R/W
19
—
—
R
O
0
3
R/W
18
—
—
R
O
0
2
R/W
17
—
—
O
R
0
1
R/W
16
—
—
O
R
0
0