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RW1065
64x32 Dot Matrix LCD Controller / Driver
RockWorks Technology Corp.
6
(3)LCD Driver Circuit Signals
Name
I/O
Description
CLL
I/O
Input/output.
I/O selection
M/S = “H” & CLS = “H” ：Output
M/S = “L” & CLS = “H” ：Input
M/S = “X” & CLS = “L” ：Input
This is a display data latch signal to count up the line counter and common counter
at each signal falling and rising edges.
SEGn
O
Output.
A single level of V0, V2, V3 and VSS is selected by the combination of display RAM contents
and FR signal.
COMn
O
Output.
The output pin for LCD common (row) driving. A single level of V0, V1, V4 and VSS is
selected by the combination of common counter output and FR signal. The
slave LSI has the reverse common output scan sequence than the master LSI.
FRR
I/O
Input/output.
This is the liquid crystal alternating current signal I/O terminal
l/O selection
M/S = “H”：Output
M/S = “L”：Input
VRAB
I
Provides the voltage between V0 and VSS through a resistive voltage divider.
M/S
I
Input.
The master or slave LSI operation select pin for the RW1065.
M/S
Operating
Mode
FR
CL
V0~V4
Power
Supply
Internal
OSC
COMMON
Output
SEG
output
High
Master Output
See
CLS
On
On
See
CLS
COM0-31 SEG0-63
Low
Slave
Input
Input
Off
Off
Off
COM32-
63
SEG64-
127
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