30 raster interrupt offset register (rintofsr) – Renesas SH7781 User Manual
Page 924
19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 894 of 1658
REJ09B0261-0100
19.3.30
Raster Interrupt Offset Register (RINTOFSR)
The raster interrupt offset register (RINTOFSR) sets the raster offset value for raster interrupts.
The value is retained during power-on reset and manual reset.
R/W:
Internal update:
R/W:
Internal update:
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
30
Bit:
Initial value:
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
O
O
O
O
O
O
O
O
O
O
—
—
—
—
—
—
—
—
—
—
0
0
0
0
0
0
RINTOFS
—
—
—
—
—
—
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
Bit:
Initial value:
Bit Bit
Name
Initial
Value R/W
Internal
Update Description
31 to 10
⎯ All
0
R
⎯ Reserved
These bits are always read as 0. The write value
should always be 0.
9 to 0
RINTOFS Undefined R/W
Yes
Raster Interrupt Offset
The raster offset value should be set, with
reference to the number of raster lines set in
VDSR.
If the offset value is n, then after horizontal
display interval of the (VDS + n)th raster line, the
RINT bit in DSSR is set to 1 at the falling edge
of HSYNC.