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HM17CM256 Datasheet(PDF) 62 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) 62 Page - Hynix Semiconductor

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HM17CM256
- 62 -
(34-12) Boosting coefficient setting
CS
RS
RD
WR
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0
0
0
1
1
0
1
*
VU2
VU1
VU0
( reset :{VU2~VU0}=0H
read address :DH) * : ”Don’t care”
coefficient setting of boosting circuit
VU2
VU1
VU0
Boosting multiple
0
0
0
No boosting *
0
0
1
2 times boosting operation
0
1
0
3 times boosting operation
0
1
1
4 times boosting operation
1
0
0
5 times boosting operation
1
0
1
6 times boosting operation
1
1
0
7 times boosting operation
1
1
1
forbidden
*VREG amplifier gain is 1.
(34-13) Bias setting register
CS
RS
RD
WR
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0
0
0
1
1
1
0
*
B2
B1
B0
( reset :{B2~B0}=0H
read address : EH) * : ”Don’t care”
The bias ratio is selected by this register.
1/10, 1/9, 1/8, 1/7, 1/6, 1/5 biases can be selected by B2, B1
and B0 register.
B2
B1
B0
bias
0
0
0
Operating under 1/9 bias
0
0
1
Operating under 1/8 bias
0
1
0
Operating under 1/7 bias
0
1
1
Operating under 1/6 bias
1
0
0
Operating under 1/5 bias
1
0
1
Operating under 1/10 bias
1
1
0
forbidden
1
1
1
forbidden
(34-14)RE flag state register setting.
CS
RS
RD
WR
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0/1
0/1
0/1
1
1
1
1
TST0
RE2
RE1
RE0
( reset :{TST0, RE2, RE1, RE0}=0H
read address :FH)
Setting the register of command extension register(RE2, RE1, RE0).
When accessing command
register, the extension register corresponding flag should be set first, and then access it.
The TST0
register is that for test, and so please set to “0”.



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