參數(shù)資料
型號(hào): KS0718
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: CAP, TANT, 10UF, 10V, 3216, 20%, SM
中文描述: 81的COM / 104賽格驅(qū)動(dòng)
文件頁數(shù): 15/66頁
文件大?。?/td> 724K
代理商: KS0718
81 COM / 104 SEG DRIVER & CONTROLLER FOR STN LCD SPEC. VER. 1.4 KS0718
12
FUNCTIONAL DESCRIPTION
MICROPROCESSOR INTERFACE
Chip Select Input
There are CS1B and CS2 pins for chip selection. The KS0718 can interface with an MPU only when CS1B is "L"
and CS2 is "H". When these pins are set to any other combination, RS, E_RD, and RW_WR inputs are disabled
and DB0 to DB7 are to be high impedance. And, in case of serial interface, the internal shift register and the
counter are reset.
Parallel / Serial Interface
KS0718 has three types of interface with an MPU, which are one serial and two parallel interface. This parallel or
serial interface is determined by PS pin as shown in table 8
Table 8. Parallel / Serial Interface Mode
PS
Type
CS1B
CS2
C68
Interface mode
H
L
*
×
6800-series MPU mode
8080-series MPU mode
H
Parallel
CS1B
CS2
L
Serial
CS1B
CS2
Serial-mode
*
×
: Don't care
Parallel Interface (PS = "H")
The 8-bit bi-directional data bus is used in parallel interface and the type of MPU is selected by C68 as shown in
Table 9. The type of data transfer is determined by signals at RS, E_RD and RW_WR as shown in table 10.
Table 9. Microprocessor Selection for Parallel Interface
C68
CS1B
CS2
RS
E_RD
RW_WR
DB0 to DB7
MPU bus
H
L
CS1B
CS1B
CS2
CS2
RS
RS
E
RW
/WR
DB0 to DB7
DB0 to DB7
6800-series
8080-series
/RD
Table 10. Parallel Data Transfer
Common
6800-series
8080-series
Description
RS
E_RD
(E)
RW_WR
(RW)
E_RD
(/RD)
RW_WR
(/WR)
H
H
L
L
H
H
H
H
H
L
H
L
L
H
L
H
H
L
H
L
Display data read out
Display data write
Register status read
Writes to internal register (instruction)
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