MB87P2020 Datasheet, PDF (329/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller

Command Description
Table 3-1: Command List
Mnemonic Code Device
DwPoly 0Fh PE
Function
Draw polygon lines. Calculated pixel are
stored in Video RAM (infinite command).
Source:
IFIFO with start and next points of a poly-
gon ([Xs,Ys], n*[Ln,Xn,Yn]).
n = number of polygon lines.
Each ’next’ point is the start point of the
next polygon line.
Registers
PLCOL
PPCMD_LAY
PPCMD_ULAY
PPCMD_EN
IFIFO
Target:
Polygon pixels in Video RAM.
Note:
Drawing of more than one polygon on dif-
ferent layers with one DwPoly command is
possible by changing layer of next point.
The colour of the polygon can’t change in
same command cycle.
Only the relevant bits of PLCOL register
are used (depends on colour depth).
NoOp
FFh ULB
No operation. Dummy cycle for command -
controller.
a.SDC, GPU, VIC, SPB, CCFL did not react on SwReset.
Legend, symbols from command list table:
• physical byte address
31
0
Note: Depending on video memory size not all addresses are used.
• data word
31
Byte 0
Byte 1
Byte 2
0
Byte 3
• single colour data (LSB aligned)
bpp-1
0
bpp...24, 16, 8, 4, 2, 1 Bit
• colour data
31
31-(bpp-1)
P₀
...
bpp...24, 16, 8, 4, 2, 1 Bit
n...count of pixel per word
bpp n
bpp-1
0
P_(n-1)
Command Description
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