EM65570 ELAN Microelectronics Corp, EM65570 Datasheet - Page 32
EM65570
Manufacturer Part Number
EM65570
Description
68com / 98seg 65k Color Stn Lcd Driver
Manufacturer
ELAN Microelectronics Corp
Datasheet
1.EM65570.pdf
(100 pages)
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EM65570
68COM/ 98SEG 65K Color STN LCD Driver
26 x
ABS=* 65K=1 C256=0 Address
ABS=1 65K=0 C256=0 Write D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
ABS=0 65K=0 C256=0 Write D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
ABS=0 65K=1 C256=0 Write D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
ABS=* 65K=0 C256=1 Write D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
ABS=* 65K=0 C256=0 Address
ABS=* 65K=0 C256=0 Address
ABS=* 65K=0 C256=1 Address
7.9 Display Data Structure and Gradation Control
7.8.4 Data Read and Write Bit Assignment
16-Bit Data Bus Mode
8-Bit Data Bus Mode
For the purpose of the gradation control, one pixel requires multiple bits of display
RAM. The EM65570 has 5-bit data per output to achieve gradation display.
The three outputs of the segment driver are used for one pixel of RGB, and the
EM65570 is connected to a color STN LCD panel. It can display 98*68 pixels with 65K
colors (5 bits * 6 bits * 5 bits). In this case, since the gradation display data is
processed by a single access to the memory, data can be rewritten fast and efficiently.
The weighting for each data bit is dependent on the status of the SWAP bit that is
selected when data is written to the display RAM.
Read
Read D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Read D15 D14 D13 D12 1 D10 D9 D8 D7
Read D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Read
Write
Read
Write
Read
Write
Write
Read
1
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
1
1
00,01,02………C1,C2,C3H
1
00,02,04………C0,C2H
00,02,04………C0,C2H
00,02,04………C0,C2H
1
1
1
1
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
(This specification is subject to change without further notice)
Product Specification (V1.0) 09.05.2005
1
1
1
01,03,05………C1,C3H
01,03,05………C1,C3H
01,03,05………C1,C3H
1
1
D4 D3 D2 D1
1
D3 D2 D1 D0
1
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