MB87P2020 Datasheet, PDF (84/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller

MB87J2120, MB87P2020-A Hardware Manual
Co0^lumn ...
7 0 ... 7
Word
00
08
...
0
1
0
1
0
1
BANK BANK BANK BANK BANK BANK
0
F8
00
ROW
1
ROW
2
ROW
2
3
2
3
2
3
... _{BANK BANK BANK BANK BANK BANK}
F8
...
Figure 1-6: Memory Mapping of Bank, Row and Column Address (Lavender)
1.5.1.2 Access Methods and Devices
This section is not SDC relevant but the reader can have benefit in better architectural understanding of the
GDC device. It depicts setup of other GDC macros which are related to addressing data in memory.
• Pixel addressing for drawing commands
There are two main sections of command regarding addressing method. First group uses pixel address in-
formation over input FIFO, second group makes use of registers for pixel coordinates.
Commands Grp1 (FIFO): PutPixel, PutPxWd, PutPxFC, GetPixel, XChPixel,
DwLine, DwPoly, DwRect, MemCP
If PPCMD_ULAY register set to 0, complete logical address information is fed through Input FIFO. Format
consists of Layer, X and Y position. The 32 bit pixel address word is combined to (from MSB to LSB)
{L[3:2], X[13:0], L[1:0], Y[13:0]}.
If PPCMD_ULAY register set to 1, layer information is used from layer register PPCMD_LAY and is not
evaluated from Input FIFO. The appropriate layer bits of Input FIFO data are don’t care. Address Format
consists of X and Y position. The 32 bit pixel address word is combined to {L[- -], X[13:0], L[- -], Y[13:0]}.
Commands Grp2 (REGs): PutBM, PutCP, PutTxtBM, PutTxtCP
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