S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 32

• Manufacturer Part Number: S1D1
• Description: LCD Controller-driver With Built-in Character ROM
• Manufacturer: Epson Electronics America, Inc.

(3) LCD Drive Circuit Signals
Rev. 1.1
COMn
Name
SEGn
M/S
FR
CL
Input. Effective for an external clock operation model only.
This is a display data latch signal to count up the line counter and common counter
at each signal falling and rising edges. If the system has a built-in oscillator, this is
used as an output pin of the oscillator amp and an Rf oscillator resistor is con-
nected to it.
Input/output.
This is an I/P pin of LCD AC signals, and connected to the M terminal of common
driver.
I/O selection
• Common oscillator built-in model: Output if M/S is 1;
• Dedicate segment model:
Output.
The output pin for LCD column (segment) driving. A single level of V
V
Output.
The output pin for LCD common (low) driving. A single level of V
is selected by the combination of common counter output and RF signal. The
slave LSI has the reverse common output scan sequence than the master LSI.
Input.
The master or slave LSI operation select pin for the S1D15200 or S1D15202.
Connected to V
slave LSI operation mode).
When this M/S pin is set, the functions of FR, COM0 to COM15, OSC1 (CS), and
OSC2 (CL) pins are changed.
* The slave driver has the reverse common output scan sequence than the master
5
driver.
S1D15200F00A
S1D15202F00A
is selected by the combination of display RAM contents and RF signal.
FR signal
Counter output
Output level
FR signal
Data
Output level
DD
(to select the master LSI operation mode) or V
*
*
M/S
V
V
V
V
DD
SS
DD
SS
EPSON
Output
Output
Input
Input
FR
Description
V
V5
1
DD
Input if M/S is 0.
Input
1
COM31 to COM16
COM0 to COM15
COM15 to COM8
COM0 to COM7
1
1
COM output
V2
V1
0
0
V
V5
1
1
DD
0
0
V3
V4
0
0
OSC1
Input
Input
NC
NC
S1D15200 Series
DD
SS
, V
(to select the
DD
1
, V
, V
Output
Output
OSC2
Input
Input
4
2
, V
and V
3
and
2–7
5