EM65570
68COM/ 98SEG 65K Color STN LCD Driver
7.9.1.2 16-Bit Mode
In 16-bit access mode, 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, as in the case with
the 8-bit access mode.
SWAP=0
SEGAi
SEGBi
SEGCi
i=0 to 97
Gradation control
Display RAM data
1
0
0
1
1
0
1
0
0
0
1
0
0
0
1
0
0
1
0
0
0
MSB LSB
LSB
MSB
MSB LSB
MPU write data
X address: 2nH,2n+1H
1
0
1
0
1
0
1
0
0
1
0
D3
D8
D13 D14
D9 D10 D11 D12 D15
D0 D1 D2
D4 D5 D6 D7
Figure 7-10a Writing Data to Display RAM with SWAP=0 Selected under 16-Bit (65K Color) Mode
SWAP=1
SEGAi
SEGBi
SEGCi
i=0 to 97
Gradation control
Display RAM data
1
0
0
1
1
0
1
0
0
0
1
0
0
0
1
0
0
1
0
0
0
MSB LSB
LSB
MSB
MSB LSB
MPU write data
X address: 2nH,2n+1H
1
0
1
0
1
0
1
0
0
1
0
D3
D8
D13 D14
D9 D10 D11 D12 D15
D0 D1 D2
D4 D5 D6 D7
Figure 7-10b Writing Data to Display RAM with SWAP=1 Selected under 16-Bit (65K Color) Mode
28 •
Product Specification (V1.0) 09.05.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
