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HM17CM256 Datasheet(PDF) 30 Page - Hynix Semiconductor

Part # HM17CM256
Description  128XRGBX82 OUTPUT LCD DRIVER IC with built-in RAM
PDF  111 Pages
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Manufacturer  HYNIX [Hynix Semiconductor]
Direct Link  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

HM17CM256 Datasheet(HTML) 30 Page - Hynix Semiconductor

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HM17CM256
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When display RAM is accessed by 16 bit data width, the weight of each data bit is dependent on
the status of SWAP register and REF register, the same method as 8 bit access
•
ACCESS when (REF, SWAP)=(0, 0) or (1, 1)
notice) internal access X address :nH~3FH (access when REF=”0”)
:3FH~nH (access when REF=”1”)
•
ACCESS when (REF, SWAP)=(0, 1) or (1, 0)
notice) internal access X address :nH~3FH (access when REF=”0”)
:3FH~nH (access when REF=”1”)
MSB LSB
MSB LSB
MSB
GLSB circuit
CPU access data
X address :nH
1
LSB
MSB
LSB
MSB
MSB
1
0
0
0
0
0
1
1
1
1
0
1
1
1
1
0
0
D0
D1
D2
D3 D4
D5
D6
D7
D8
D9 D10 D11 D12 D13 D14 D15
SEGAi
SEGBi
0
Palette Aj
SEGCi
Palette Cj
Gradation palette
i=0~126
j=0~7
Gradation
control ciruit
Display RAM data
0
0
0
0
1
1
1
1
0
0
SEGBi+1
Palette Bj
Palette Cj
Palette Bj
Palette Aj
SEGAi+1
SEGCi+1
1
1
0
0
SEGAi
SEGBi
1
Palette Aj
SEGCi
Palette Cj
MSB
LSB MSB
LSB MSB
GLSB circuit
Gradation palette
i=0~126
j=0~7
CPU access data
X address :nH
Graydation
control ciruit
Display RAM data
1
0
0
1
1
1
0
0
1
1
0
LSB
MSB
LSB MSB
MSB
SEGBi+1
Palette Bj
Palette Cj
Palette Bj
Palette Aj
SEGAi+1
SEGCi+1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
1
1
1
1
0
0
0
D0
D1
D2
D3 D4
D5
D6
D7
D8
D9 D10 D11 D12 D13 D14 D15



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