EM65570
68COM/ 98SEG 65K Color STN LCD Driver
7.9.2.2 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
0
0
0
0
0
0
1
0
0
0
0
0
1
1
1
1
1
1
LSB
MSB LSB
MSB LSB
MSB
MPU write data
X address: nH
0
0
1
0
1
1
D1 D2 D3 D4 D7 D8 D9 D10 D12 D13 D14 D15
ABS=1 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11
Figure 7-12a Writing Data to Display RAM with SWAP=0 Selected
under 16-Bit (4096 Color) Mode
SWAP=1
SEGAi
SEGBi
SEGCi
i=0 to 97
Gradation control
display RAM data
0
0
0
0
0
0
1
0
0
0
0
0
1
1
1
1
1
1
LSB
MSB LSB
MSB LSB
MSB
MPU write data
X address: nH
0
0
1
0
1
1
D1 D2 D3 D4 D7 D8 D9 D10 D12 D13 D14 D15
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11
ABS=1
Figure 7-12b Writing Data to Display RAM with SWAP=1 Selected
under 16-Bit (4096 Color) Mode
30 •
Product Specification (V1.0) 09.05.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
