Renesas SH7781 - Manual (Page 937)

19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 907 of 1658
REJ09B0261-0100
19.3.40 Plane n Start Position X Register (PnSPXR) (n = 1 to 6)
The plane n start position X registers (PnSPXR, n = 1 to 6) set the horizontal start position of
plane n in memory. 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/W R/W R R R R
O O O O O O O O O O O O
— — — — — — — — — — — — 0 0 0 0
PnSPX — — — —
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 12
⎯ All
0 R
⎯ Reserved
These bits are always read as 0. The write value
should always be 0.
11 to 0 PnSPX Undefined R/W Yes Plane n Start Position X
The horizontal start position of plane n in
memory should be set in dot units.
Notes: 1. When YC is set by the PnDDF bit in
PnMR, an even value should be set.
2. Setting of values exceeding twice the
value of the plane n memory width X
register (PnMWX) is prohibited.