r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 900

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

19. Display Unit (DU)
19.3.15 Vertical Cycle Register (VCR)
The vertical cycle register (VCR) sets the vertical scan interval. The value is retained during
power-on reset and manual reset.
Internal update:
Internal update:
Rev.1.00 Jan. 10, 2008 Page 870 of 1658
REJ09B0261-0100
Bit
31 to 10 ⎯
9 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name
VC
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
—
—
R
O
0
9
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Vertical Cycle
The vertical scan interval, including the vertical
blanking interval, should be set in raster line
units.
When in TV sync mode, the EXVSYNC rising-
edge detection interval time should be set. If not
detected within the interval, the result is
reflected in the TVR flag in DSSR.
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
VC
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