NEC µPD72257 Preliminary User's Manual page 266

Graphics controllers
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Chapter 8
8.9.3.2
Access
Address
Index
Initial Value
31
30
29
28
COLOR2A[7:0]
15
14
13
12
COLOR2G[7:0]
Bit
Bit name
31 to 24
COLOR2A[7:0]
23 to 16
COLOR2R[7:0]
15 to 8
COLOR2G[7:0] Green channel of colour 2
7 to 0
COLOR2B[7:0]
266
DRWCOLOR2 - Secondary colour register
This register defines the 32-bit ARGB value for the secondary colour, i.e. constant
colour 2.
Secondary colour is relevant only when rendering patterns, textures or using a
BC2 blendmode (see DRWCONTROL2).
This register can be written in 32-bit units.
<DrwE_Base> + 68
H
26
0000 0000
. This register is initialized by any reset.
H
27
26
25
24
W
11
10
9
8
W
Function
Alpha channel of colour 2
00
transparent
H
...
...
FF
opaque
H
Red channel of colour 2
Blue channel of colour 2
Preliminary User's Manual S19203EE1V3UM00
23
22
21
20
COLOR2R[7:0]
W
7
6
5
4
COLOR2B[7:0]
W
Drawing Engine
19
18
17
16
3
2
1
0

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