A45L9332AF-8 Ver la hoja de datos (PDF) - AMIC Technology
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A45L9332AF-8 Datasheet PDF : 55 Pages
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A45L9332A Series
(Continued)
Pixel and I/O masking : By Mask at Write Per Bit Mode, the selected bit planes keep the original data.
By Pixel Data issued through DQ pin, the selected pixels keep the original data.
See PIXEL TO DQ MAPPING TANLE.
Assume 8bpp,
White = “0000,0000”, Red = “1010,0011”, Green = “1110,0001”, Yellow = “0000,1111”, Blue = “1100,0011”
i) STEP
•• SMRS (LCR) : Load color (for 8bpp, through X 32 DQ color0-3 are loaded into color registers)
Load (color3, color2, color1, color0) = (Blue, Green, Yellow, Red)
= “1100,0011,1110,0001,0000,1111,1010,0011”
••SMRS (LMR) : Load mask, Mask[31-0] = “1111,1111,1101,1101,0100,0010,0111,0110”
→ Byte 3:No I/O Masking; Byte 2:I/O Masking; Byte 1:I/O and Pixel Masking; Byte 0:DQM Byte Masking
•• Row Active with DSF “H” : I/O Mask by Write Per Bit Mode Enable
•• Block Write with DQ[31-0] = “0111,0111,1111,1111,0101,0101,1110,1110”
(Pixel Mask)
ii) ILLUSTRATUON
I/O(=DQ)
Color Register
DQMi
Mask Register
Before Write
After Write
31
24
Blue
11000011
DQM3=0
11111111
Yellow
00001111
Blue
11000011
23
16
Green
11100001
DQM2=0
11011101
Yellow
00001111
Blue
11000011
15
8
Yellow
00001111
DQM1=0
01000010
Green
11100001
Red
10100011
7
0
Red
10100011
DQM0=1
01110110
White
00000000
White
00000000
I/O(=DQ)
DQMi
31
24
DQM3=0
Color Register
Before
Block
Write
000
001
010
&
011
DQ
100
(Pixel 101
data)
110
111
000
Color3=Blue
Yellow DQ24=H
Yellow DQ25=H
Yellow DQ26=H
Yellow DQ27=L
Yellow DQ28=H
Yellow DQ29=H
Yellow DQ30=H
Yellow DQ31=L
Blue
001
Blue
010
After
011
Block
Write
100
101
Blue
Yellow
Blue
Blue
110
Blue
111
Yellow
Note 2
23
16
DQM2=0
Color2=Green
Yellow DQ16=H
Yellow DQ17=H
Yellow DQ18=H
Yellow DQ19=H
Yellow DQ20=H
Yellow DQ21=H
Yellow DQ22=H
Yellow DQ23=H
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
15
8
DQM1=0
Color1=Yellow
Green DQ8=H
Green DQ9=L
Green DQ10=H
Green DQ11=H
Green DQ12=H
Green DQ13=L
Green DQ14=H
Green DQ15=L
Red
Green
Red
Green
Red
Green
Red
Green
Note 1
7
0
DQM0=1
Color0=Red
White DQ0=L
White DQ1=H
White DQ2=H
White DQ3=H
White DQ4=L
White DQ5=H
White DQ6=H
White DQ7=H
White
White
White
White
White
White
White
White
Note 1
PIXEL MASK I/O MASK
PIXEL & I/O MASK BYTE MASK
* Note : 1. DQM byte masking.
2. At normal write, One column is selected among columns decoded by A2-0 (000-111)
At block write, instead of ignored address A2-0, DQ0-31 control each pixel.
PRELIMINARY (October, 2001, Version 0.1)
27
AMIC Technology, Inc.
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