參數(shù)資料
型號(hào)： KS0708
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： 64COM/128SEG DRIVE FOR DOT MATRIX LCD
中文描述： 64COM/128SEG驅(qū)動(dòng)的點(diǎn)陣LCD
文件頁(yè)數(shù)： 8/27頁(yè)
文件大?。?/td> 212K
代理商： KS0708
PRELIMINARY SPECIFICATION
64COM/128SEG DRIVE FOR DOT MATRIX LCD
KS0708
8
M/M-96-D001
97-09-19
FUNCTIONAL DESCRIPTION
Chip Select input
The KS0708 has two chip select pin, CS1B and CS2B. It can interface with a mircoprocessor when these
pins(CS1B or CS2B)is Low. When both of these pins are set to High, DB0 to DB7 are high impedance
and RS, RW, and E inputs are disabled. CS1B pin controls the display status of S1 to S64, and CS2B
does that of S65 to S128. When CS1B and CS2B are Low at the same time, it is impossible to execute
read operation. Therefore one of CS1B or CS2B should be set to Low((CS1B =
¨
H
¨
& CS2B =
¨
L
¨
)or
(CS1B =
¨
L
¨
& CS2B =
¨
H
¨
)) in read operation. The RESETB signal is entered independet of the sta-
tus of Chip Select.
CS1B
CS2B
Read Operation
Write Operation
CS1
CS2
CS1
CS2
H
H
X
X
X
X
L
H
X
X
H
L
X
X
L
L
-
-
( - : Not Recommended,
: Operation, X : No Operation)
Table 1. Relationship between Chip Select pins and Read/Write Operation
Microprocessor Interface
KS0708 transfers 8-bit parallel in either direction between the controlling microprocessor and the KS0708
through the 8-bit I/O buffer(DB0 TO DB7).
RS, RW and E identify the type of parallel data transfer to be made as shown in table 2.
RS
RW
Description
H
H
Display data read
H
L
Display data write
L
H
Status read
L
L
Writes to internal register (Instruction)
Table 2. Microprocessor Interface
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