S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 69

• Manufacturer Part Number: S1D12200
• Description: S1d12000 Series Lcd Driver Ic Technical Manual Technical Manual
• Manufacturer: Epson Electronics America, Inc.

System Bus Connector Pins
Rev. 1.1
Pin Name
D6(SCL)
D5 to D0
D7(SI)
RES
C86
WR
CS
PS
CK
A0
IF
I/O
I
I
I
I
I
I
I
I
I
An 8-bit input data bus to be connected to the standard 8- or 16-bit MPU data bus.
Pins D7 and D6 function as the serial data and clock inputs respectively if PS is
logical low.
Open : May be open. However, the potential is recommended to fix to have
Usually, the most significant bit of MPU address bus is connected to identify data
or command.
Initializes when RES is set to LOW. The system is reset at RES signal level.
A Chip Select signal. The address bus signal is decoded and entered.
This is valid when LOW.
- When an 80-series MPU is connected
- When a 68-series MPU is connected
A switching pin between serial data input and parallel data input.
An interface data length select pin during parallel data input.
This pin is connected to V
An MPU interface switch pin.
This pin is connected to V
An external clock input pin.
It must be fixed to HIGH to use the internal oscillator.
To use an external clock input, turn the internal oscillator OFF by issuing the
command.
0: Indicates D0 to D7 are command.
1: Indicates D0 to D7 are display data.
- 8-bit parallel input if IF=HIGH
- 4-bit parallel input if IF=LOW
- 68-series MPU interface if C86=HIGH
- 80-series MPU interface if C86=LOW
HIGH HIGH HIGH
HIGH HIGH LOW
HIGH LOW HIGH
HIGH LOW LOW
LOW
Active LOW.
The WR signal of 80-series MPU is connected. The data bus signal is fetched
at the rising edge of WR signal.
Active HIGH.
Used as an Enable Clock input of 68-series MPU. The data bus signal is
fetched at the falling edge of WR signal.
PS
- : May be HIGH or LOW. However, the potential must be fixed.
HIGH
LOW
P/S
better noise-resistance characteristics.
C86
—
Chip select
—
IF
CS
CS
D7
D7
D7
D7
D7
SI
DD
DD
or V
or V
Data/Command
SCL OPEN OPEN OPEN
EPSON
D6
D6
D6
D6
D6
SS
SS
Descrition
if PS=LOW.
if PS=LOW.
A0
A0
D5
D5
D5
D5
D5
D4
D4
D4
D4
D4
D0 to D7
Data
SI
D3 to D0
D3-D0
OPEN
D3-D0
OPEN
CS
CS
CS
CS
CS
CS
Serial Clock
SCL
A0
A0
A0
A0
A0
A0
—
WR
WR
WR
—
E
E
S1D12205 Series
No. of Pins
8
1
1
1
1
1
1
1
1
3–7