參數(shù)資料
型號: S6A0072
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 16COM/40SEG DOT MATRIX LCD CONTROLLER & DRIVER
中文描述: 16COM/40SEG點陣LCD控制器
文件頁數(shù): 6/32頁
文件大小: 268K
代理商: S6A0072
S6A0072 16COM/40SEG DOT MATRIX LCD CONTROLLER & DRIVER
6
FUNCTION DESCRIPTION
SYSTEM INTERFACE
This chip consists of two kinds of interface type with MPU: 4-bit bus and 8-bit bus. 4-bit bus and 8-bit bus is
selected by DL bit of function set in the instruction register. During read or write operation, two 8-bit registers are
used. One is the data register (DR), the other is the instruction register (IR). The data register (DR) is used as a
temporary data storage place for being written into or read from DDRAM/CGRAM, target RAM is selected by
RAM address setting instruction. Each internal operation, reading from or writing into RAM, is done automatically.
Thus, after MPU reads DR data, the data in the next DDRAM/CGRAM address is transferred into DR
automatically. Also after MPU writes data to DR, the data in DR is transferred into DDRAM/CGRAM
automatically. The Instruction register (IR) is used only to store instruction code transferred from MPU. MPU
cannot read data from instruction register. The register selection depends on RS input pin setting in both 4-bit bus
mode.
Table 1. Various Kinds Of Operations According to RS and R/W Bits
RS
0
0
1
1
R/W
0
1
0
1
Operation
Instruction write operation (MPU writes Instruction code into IR)
Read busy flag (DB7) and address counter (DB0 - DB6)
Data write operation (MPU writes data into DR)
Data read operation (MPU reads data from DR)
BUSY FLAG (BF)
BF = "High" indicates that the internal operation is being processed. So during this time the next instruction
cannot be accepted. BF can be read, when RS = Low and R/W = High (Read instruction Operation), through DB7
port.
Before executing the next instruction, be sure that BF is not High.
ADDRESS COUNTER (AC)
Address Counter (AC) stores the address of DDRAM/CGRAM that are transferred from IR. After writing into
(reading from) DDRAM/CGRAM data, AC is increased (decreased) by 1 automatically. When RS = "Low", and
R/W = "High", AC value can be read through DB0 - DB6 ports.
相關(guān)PDF資料
PDF描述
S6B0086 80 CH SEGMENT / COMMON DRIVER FOR DOT MATRIX LCD
S6B0107 64CH COMMON DRIVER FOR DOT MATRIX LCD
S6B0108 64 CH SEGMENT DRIVER FOR DOT MATRIX LCD
S6B0708 64COM/128SEG GRAPHIC DRIVER FOR DOT MATRIX LCD
S6B0716X01-C0C8 CAT5E PATCH CORD 3 FOOT BLUE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S6A0073 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:40 CH SEGMENT/COMMON DRIVER FOR DOT MATRIX LCD
S6A0074 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
S6A0075 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:100 SEG / 34 COM DRIVER & CONTROLLER FOR DOT MATRIX LCD
S6A0078 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:120 SEG / 34 COM DRIVER & CONTROLLER FOR DOT MATRIX LCD
S6A0079 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD