SSD1854U ETC [List of Unclassifed Manufacturers], SSD1854U Datasheet - Page 13

• Manufacturer Part Number: SSD1854U
• Description: LCD Segment / Common Driver with Controller CMOS
• Manufacturer: ETC [List of Unclassifed Manufacturers]

6
SSD1854
Series
6.1
This pin is reset signal input. When the pin is low, initialization of the chip is executed.
6.2
These 3 pins use together to determine the interface protocol between the driver and MCU according
to the following table.
6.3
This pin is chip select input. The chip is enabled for display data/command transfer only when
low.
For 6800-series parallel mode, when E pin is pulled high, the read/write cycle is initiated by pulling low
of this
6.4
This input pin is to identify display data/command cycle. When the pin is high, the data written to the
driver will be written into display RAM. When the pin is low, the data will be interpreted as command.
This pin must be connected to V
6.5
This pin is microprocessor interface signal. When interfacing to an 6800-series microprocessor, the
signal indicates read mode when high and write mode when low. When interfacing to an 8080-
microprocessor, a data write operation is initiated when
6.6
This pin is microprocessor interface signal. When interfacing to an 6800-series microprocessor, a data
operation is initiated when
microprocessor, a data read operation is initiated when
6.7
D
data bus. When serial mode is selected, D
SCK. All unused data pins must be connected to ground.
PS0
L
L
H
H
Table 3 - PS0-2 Interface
0
-D
7
PIN DESCRIPTION
PS0-2
D/
R/
E(
D
are bi-directional and D
RES
CS
CS
0
W
RD
C
-D
pin.
PS1
L
H
L
H
(
15
)
WR
Rev 1.0
08/2002
)
PS2
X
X
H
L
H
L
Interface
3-wire SPI (write only)
4-wire SPI (write only)
8080 parallel interface (8-bits read and 16-bits write)
8080 parallel interface (8-bits read and 8-bits write)
6800 parallel interface (8-bits read and 16-bits write)
6800 parallel interface (8-bits read and 8-bits write)
E( RD )
8
-D
SS
15
when 3-lines SPI interface is used.
is high and the chip is selected. When interfacing to an 8080-
are input only data pins to be connected to the microprocessor’s
7
is the serial data input SDA and D
E( RD )
R/W ( WR )
is low and the chip is selected.
is low and the chip is selected.
6
is the serial clock input
SOLOMON
CS
is
8