Renesas SH7781 - Manual (Page 939)

19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 909 of 1658
REJ09B0261-0100
19.3.42 Plane n Wrap Around Start Position Register (PnWASPR) (n = 1 to 6)
The plane n wrap-around start position registers (PnWASPR, n = 1 to 6) set the Y direction start
position of one wrap-around area of plane n. 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 R R R R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R R
O O O O O O O O O O
0 0 0 0 — — — — — — — — — — 0 0
— — — — PnWASPY — —
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 14
⎯ All
0 R
⎯ Reserved
These bits are always read as 0. The write value
should always be 0.
13 to 4 PnWASPY Undefined R/W Yes Plane n Wrap Around Start Position Y
The Y direction start position of one wrap-
around area should be set with reference to the
address specified in PnDSA0R and PnDSA1R.
The start position can be set every 16 raster
lines.
3 to 0
⎯ All
0 R
⎯ Reserved
These bits are always read as 0. The write value
should always be 0.