r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 896

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

19. Display Unit (DU)
19.3.11 Vertical Display Start Register (VDSR)
The vertical display start register (VDSR) sets the vertical display start position. The value is
retained during power-on reset and manual reset.
Internal update:
Internal update:
Rev.1.00 Jan. 10, 2008 Page 866 of 1658
REJ09B0261-0100
Bit
31 to 9
8 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name
⎯
VDS
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
27
11
—
—
R
R
0
0
Internal
Update
⎯
Yes
26
10
—
—
R
R
0
0
25
—
—
R
R
0
9
0
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Vertical Display Start
The vertical display start position should be set
in raster line units.
R/W
24
—
—
R
O
0
8
R/W
23
—
—
R
O
0
7
R/W
22
—
—
O
R
0
6
R/W
21
—
—
O
R
0
5
R/W
VDS
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