MB86290A Datasheet, PDF (107/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

CDA (C-layer Display Address)
Register address ^{DisplayBaseAddress + 28h}
Bit #
Bit field name
R/W
Default
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reserve
R0
0
CDA
RW
Don’t care
This register controls the base address of the display field of the Console
layer. When the direct color mode is used, the LSB is fixed to 0 and this
address is 2-byte aligned.
CDX (C-layer Display position X)
Register address ^{DisplayBaseAddress + 2Ch}
Bit #
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit field name
Reserved
CDX
R/W
R0
RW
Default
0
Don’t care
Set the display start position (X-coordinate) for the C layer in pixel units
relative to the origin of the logical frame.
CDY (C-layer Display position Y)
DisplayBaseAddress + 2Eh
Register address
Bit #
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit field name
Reserved
CDY
R/W
R0
RW
Default
0
Don’t care
Set the display start position (Y-coordinate) for the C-layer in pixel units
relative to the origin of the logical frame.
WM (W-layer Mode)
DisplayBaseAddress + 30h
Register address
Bit #
Bit field name
R/W
Default
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reserve
R0
0
WW
RW
Don’t care
Reserve
R0
0
Bits 21-16 WW(W-layer memory Width)
Set width of Window layer logical frame size in 64-byte units.
Bit 31
WC (W-layer Color mode)
Sets color mode for W-layer
0 Indirect color (8 bits/pixel) mode
1 Direct color (16 bits/pixel) mode
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