
  A45L9332A Series 
PRELIMINARY 
(October, 2001, Version 0.1) 
27 
AMIC Technology, Inc.
Note 1 
(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” 
ii) ILLUSTRATUON 
(Pixel Mask) 
I/O(=DQ) 
Color Register 
DQMi 
Mask Register 
Before Write 
    31                 24 
Blue 
1 1 0 0 0 0 1 1 
DQM3=0 
1 1 1 1 1 1 1 1 
Yellow 
0 0 0 0 1 1 1 1 
Blue 
1 1 0 0 0 0 1 1 
23              16 
Green 
1 1 1 0 0 0 0 1 
DQM2=0 
1 1 0 1 1 1 0 1 
Yellow 
0 0 0 0 1 1 1 1 
Blue 
1 1 0 0 0 0 1 1 
15                8 
Yellow 
0 0 0 0 1 1 1 1 
DQM1=0 
0 1 0 0 0 0 1 0 
Green 
1 1 1 0 0 0 0 1 
Red 
1 0 1 0 0 0 1 1 
7                  0 
Red 
1 0 1 0 0 0 1 1 
DQM0=1 
0 1 1 1 0 1 1 0 
White 
0 0 0 0 0 0 0 0 
White 
0 0 0 0 0 0 0 0 
After Write 
I/O(=DQ) 
DQMi 
Color Register 
31               24 
DQM3=0 
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 
Blue 
Blue 
Yellow 
Blue 
Blue 
Blue 
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 
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 
000 
001 
010 
011 
100 
101 
110 
111 
000 
001 
010 
011 
100 
101 
110 
111 
Before 
Block 
Write 
& 
DQ 
(Pixel 
data) 
After 
Block 
Write 
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.