參數(shù)資料
型號(hào): SSD1852
廠商: Electronic Theatre Controls, Inc.
英文描述: LCD Segment / Common Driver With Controller CMOS
中文描述: LCD段/與普通的CMOS驅(qū)動(dòng)器控制器
文件頁數(shù): 13/55頁
文件大?。?/td> 637K
代理商: SSD1852
SSD1852
Rev 1.0
01/2003
SOLOMON
8
6
PIN DESCRIPTION
6.1
RES
This pin is reset signal input. When the pin is low, initialization of the chip is executed.
6.2
PS0 & PS1
These two pins determine the interface protocol between the driver and MCU. Refer to the
following table.
PS0
PS1
Interface
L
L
3-wire SPI (write only)
L
H
4-wire SPI (write only)
H
L
8080 parallel interface (read and write allowed)
H
H
6800 parallel interface (read and write allowed)
6.3
CS
This pin is chip select input. The chip is enabled for display data/command transfer only when
CS
is low.
6.4
D/
C
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
SS
when 3-lines SPI interface is used.
6.5
R/
W
(
WR
)
This pin is a microprocessor interface signal. When interfacing 6800-series microprocessor, the
signal indicates read mode when high and write mode when low. When interfacing 8080-
microprocessor, the data write operation is initiated when
R/
W
(
WR
)
is low and the chip is
selected.
6.6
E(
RD
)
This pin is microprocessor interface signal. When interfacing 6800-series microprocessor, the
data operation is initiated when
E(
RD
)
is high and the chip is selected. When interfacing 8080-
microprocessor, the data read operation is initiated when
E(
RD
)
is low and the chip is selected.
6.7
D
0
~D
7
These pins are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus.
When serial mode is selected, D
7
is the serial data input SDA and D
6
is the serial clock input
SCK.
6.8
INTRS
This pin is an input pin to enable the internal resistors network for the voltage regulator when
INTRS is high. When external regulator is used, this pin must be connected to V
SS
, and external
resistors R
2
/R
1
should be connected to V
L6
, V
R
and V
SS
.
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