r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 937

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

19.3.40 Plane n Start Position X Register (PnSPXR) (n = 1 to 6)
The plane n start position X registers (PnSPXR, n = 1 to 6) set the horizontal start position of
plane n in memory. The value is retained during power-on reset and manual reset.
Internal update:
Internal update:
Bit
31 to 12 ⎯
11 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name
PnSPX
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
—
—
R
O
0
Internal
Update
⎯
Yes
R/W
26
10
—
—
O
R
0
R/W
25
—
—
O
R
0
9
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Plane n Start Position X
The horizontal start position of plane n in
memory should be set in dot units.
Notes: 1. When YC is set by the PnDDF bit in
R/W
24
—
—
R
O
0
8
R/W
2. Setting of values exceeding twice the
23
—
—
R
O
0
7
PnMR, an even value should be set.
value of the plane n memory width X
register (PnMWX) is prohibited.
Rev.1.00 Jan. 10, 2008 Page 907 of 1658
R/W
22
—
—
R
O
0
6
PnSPX
R/W
21
—
—
O
R
0
5
R/W
20
—
—
O
R
0
4
R/W
19. Display Unit (DU)
19
—
—
R
O
0
3
REJ09B0261-0100
R/W
18
—
—
R
O
0
2
R/W
17
—
—
R
O
0
1
R/W
16
—
—
O
R
0
0