64CH Common Driver For Dot Matrix LCD
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© 1998 Intech LCD Group Ltd.
3)
Duty Selection (DS1, DS2)
It provides various duty selection according to DS1, DS2.
DS1
DS2
DUTY
L
1/48
L
H
1/64
L
1/96
H
H
1/128
3. Data shift & Phase Select Control
1) Phase Selection
It is a circuit to shift data on synchronization or rising edge or falling edge of the CL2 according
to PCLK2.
PCLK2
Phase Selection
H
Data shift on rising edge of CL2
L
Data shift on falling edge of CL2
2) Data shift Direction Selection
When M/S is connected to VDD, DIO1 and DIO2 terminal is only output.
When M/S is connected to VSS, it depends on the SHL.
MS
SHL
DIO1
DIO2
Direction of Data
H
Output
Output
C1~C64
H
L
Output
Output
C64~C1
H
Input
Output
DIO1~C1~C64~DIO2
L
L
Output
Input
DIO2~C64~C1~DIO1
