SH7785 Datasheet, PDF (938/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

19. Display Unit (DU)
19.3.41 Plane n Start Position Y Register (PnSPYR) (n = 1 to 6)
The plane n start position Y registers (PnSPYR, n = 1 to 6) set the vertical start position of plane n
in memory. The value is retained during power-on reset and manual reset.
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
————————————————
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R R R R R R R R R R R R R R R R
Internal update:
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
PnSPY
Initial value: — — — — — — — — — — — — — — — —
R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Internal update: O O O O O O O O O O O O O O O O
Initial
Bit
Bit Name Value R/W
31 to 16 ⎯
All 0
R
15 to 0 PnSPY Undefined R/W
Internal
Update Description
⎯
Reserved
These bits are always read as 0. The write value
should always be 0.
Yes
Plane n Start Position Y
The vertical start position of plane n in memory
should be set in raster line units.
Note: Setting a value exceeding {twice the plane
n wrap-around start position Y
(PnWASPY) + twice the plane n wrap-
around memory width Y (PnWAMWY)} is
prohibited.
Rev.1.00 Jan. 10, 2008 Page 908 of 1658
REJ09B0261-0100