S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 199

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

System Bus Connecting Pins
Rev. 2.1
Pin name
D6 (SCL)
D5 to D0
D7 (SI)
RES
C86
WR
P/S
CS
(E)
CK
A0
IF
I/O
I
I
I
I
I
I
I
I
I
8-bit input data bus which is connected to the 16-bit standard MPU
data bus.
Pin D7 and pin D6 function as a serial data input and a serial clock
input at P/S = LOW, respectively.
C86:
OPEN: OPEN is allowable, but it is recommend to fix it to one of
—:Either HIGH or LOW is allowable, but the potential should be fixed.
Usually used to distinguish data from a command to which the LSB
of the MPU address bus is connected.
Reset pin for initializing the whole IC. Be sure to input it once when
the power supply is turned on. A reset operation is performed at the
LOW level of the RES signal.
MPU selecting pin. Fix it to HIGH or LOW depending on the MPU to
be used.
Chip selecting pin. Usually, it inputs a signal that is obtained by
decoding an address signal. Chip selection is enabled at the LOW
level.
<When the 80 series MPU is selected> Active LOW
<When the 68 series MPU is connected> Active HIGH
A pin for selecting either serial interface or parallel interface.
A data bit length selecting pin at parallel interface.
At P/S = LOW, set pins D3 to D0 to V
An external clock input pin.
Mode
68I/F 8bit HIGH HIGH HIGH D7
68I/F 4bit HIGH HIGH LOW D7
80I/F 8bit HIGH LOW HIGH D7
80I/F 4bit HIGH LOW LOW D7
Serial I/F LOW
LOW : Indicates that D0 to D7 are of a command.
HIGH : Indicates that D0 to D7 are of data.
LOW : 80 series MPU interface
HIGH : 68 series MPU interface
LOW : Serial interface
HIGH : Parallel interface
HIGH : 8-bit parallel interface
LOW : 4-bit parallel interface
A pin for connecting the WR signal of the 80 series MPU.
The signal on the data bus is latched at the rise of the WR signal.
Becomes an enable clock input of the 68 series MPU.
When using the internal oscillating circuit, fix it to HIGH.
When using an external clock input, the internal oscillating circuit
must be turned off by command.
Pin
An MPU selecting pin
potentials as a matter of noise-resistance characteristic.
P/S C86
HIGH or LOW
EPSON
—
IF
D7
SI
Description
SCL OPEN OPEN OPEN CS
D6
D6
D6
D6
D6
D5
D5
D5
D5
D5
DD
or V
D4
D4
D4
D4
D4
SS
, or OPEN.
D3-D0 CS
D3-D0 CS
OPEN CS
D3-D0 CS
OPEN CS
S1D12400 Series
A0
A0
A0
A0
A0
A0
WR
WR
WR
—
E
E
No. of Pins
6–11
8
1
1
1
1
1
1
1
1