r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 901

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

19.3.16 Vertical Sync Point Register (VSPR)
The vertical sync point register (VSPR) sets the start position of the vertical sync signal in raster
line units. The value is retained during power-on reset and manual reset.
Internal update:
Internal update:
Bit
31 to 10 ⎯
9 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name
VSP
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
R/W
25
—
—
O
R
0
9
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Vertical Sync Point
The start position of the vertical sync signal
should be set in raster line units.
When in TV sync mode, this register should be
set such that the VSYNC falling edge set
position in this register is the same as or later
than the EXVSYNC falling edge.
R/W
24
—
—
R
O
0
8
R/W
23
—
—
R
O
0
7
Rev.1.00 Jan. 10, 2008 Page 871 of 1658
R/W
22
—
—
R
O
0
6
R/W
21
—
—
O
R
0
5
VSP
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