S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 118

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

S1D12300 Series
Pins for System Bus Connection
4–14
Pin name
D6 (SCL)
D5 to D0
D7 (SI)
RES
WR
P/S
CS
(E)
A0
IF
I/O
I
I
I
I
I
I
I
8-bit input data bus. These pins are connected to a 8-bit or 16-bit
standard MPU data bus.
When P/S = LOW, the D7 and D6 pins are operated as a serial data
input and a serial clock input respectively.
When P/S = LOW, be sure to fix D5 to D0 to HIGH or LOW.
Usually, this pin connects the least significant bit of the MPU address
bus and identifies a data command.
In case of a 68 series MPU, initialization can be performed by
changing RES
initialization can be performed by changing
A reset operation is performed by edge sensing of the RES signal.
An interface type for the 68/80 series MPU is selected by input level
after initialization.
Chip select signal. Usually, this pin inputs the signal obtained by
decoding an address bus signal. At the LOW level, this pin is
enabled.
<When connecting an 80 series MPU>
When P/S = LOW, be sure to fix the WR signal to HIGH or LOW.
<When connecting a 68 series MPU>
This pin switches between serial data input and parallel data input.
Interface data length select pin for parallel data input.
When P/S = LOW, connect this pin to V
HIGH
HIGH
LOW
LOW
P/S
0 : Indicates that D0 to D7 are a command.
1 : Indicates that D0 to D7 are display data.
LOW : 68 series MPU interface
HIGH : 80 series MPU interface
Active LOW. This pin connects the WR signal of the 80 series
MPU. The signal on the data bus is fetched at the rise of the WR
signal.
Active HIGH. This pin becomes an enable clock input of the 68
series MPU.
P/S
HIGH: 8-bit parallel input
LOW: 4-bit parallel input
Chip Select Data/Command
D7
D7
SI
CS
CS
. In case of an 80 series MPU,
SCL
EPSON
D6
D6
D5 to D0
D5 to D0
Description
—
A0
A0
CS
CS
CS
DD
D0 to D7
or V
Data
A0
A0
A0
SI
.
SS
.
Serial Clock
SCL
–
Rev. 1.9
No. of Pins
8
1
1
1
1
1
1