KS0078 データシートの表示（PDF） - Samsung
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KS0078 Datasheet PDF : 71 Pages
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KS0078
34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
PAD DESCRIPTION (continued)
PAD (NO)
IM (64)
RS/CS (67)
RW/SID (68)
E/SCLK (69)
DB0/SOD (70)
DB1-DB3
(71-73)
DB4-DB7
(74-77)
INPUT/
OUTPUT
Input
Input
Input
Input
Input_Output/
Output
Input.
Output
NAME
DESCRIPTION
Interface mode Select Interface mode with the MPU.
selection
In IM = "Low" : Serial mode,
In IM = "High" : 4-bit/8-bit bus mode.
Register select/
Chip select
In bus mode, used as register selection input.
In RS/CS = "High", Data register is selected. In
RS/CS = "Low", Instruction register is selected.
In serial mode, used as chip selection input.
In RS/CS = "Low", selected. When RS/CS =
"High", not selected.(Low access enable)
Read_write/
Serial input data
In bus mode, used as read/write selection input.
In RW/SID = "High", read operation. When
RW/SID = "Low", write operation.
In serial mode, used for data input pin.
Read_write
enable/Serial
clock
In bus mode, used as read_write enable signal.
In serial mode, used as serial clock input pin.
Data bus 0
bit/Serial output
data
In 8-bit bus mode, used as lowest bi-directional
data bit. During 4-bit bus mode, Open this pin.
In serial mode, used as serial data output pin. If
not in read operation, open this pin.
Data bus 1- 7
In 8-bit bus mode, used as low order bi-
directional data bus.
During 4-bit bus mode or serial mode, open
these pins.
In 8-bit bus mode, used as high order bi-
directional data bus. In case of 4-bit bus mode,
used as both high and low order.
DB7 used for Busy Flag output.
During serial mode, open these pins.
INTERFACE
-
MPU
MPU
MPU
MPU
MPU
MPU
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