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參數(shù)資料
| 型號(hào)： | S6A0071 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 32COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD |
| 中文描述： | 32COM/60SEG驅(qū)動(dòng) |
| 文件頁(yè)數(shù)： | 7/29頁(yè) |
| 文件大小： | 330K |
| 代理商： | S6A0071 |
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32COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
S6A0071
7
FUNCTION DESCRIPTION
System Interface
This chip has both kinds of interface type with MPU: 4-bit bus and 8-bits bus. 4-bit bus and 8-bit bus are selected
by the DL bit in the instruction register.
During read or write operation, two 8-bit registers are used. One is the data register (DR), and 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
DDRAW/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
codes transferred from MPU. MPU cannot use it to read instruction data. To select a register, you can use the RS
input pin in 4-bit/8-bit bus mode.
Table 1. Various Kinds of Operations 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 - DB7)
Data Write operation (MPU writes data into DR)
Data Read operation (MPU reads data into DR)
Busy Flag (BF)
When BF = 1, it indicates that the internal operation is being processed. So during this time the next instruction
cannot be accepted. BF can be read through DB7 port, when RS = 0, and R/W = 1. (Read Instruction Operation).
Before executing the next instruction, be sure that BF is not 1.
Address Counter (AC)
The Address Counter (AC) stores DDRAM/CGRAM addresses, transferred from IR. After writing into (reading
from) DDRAM/CGRAM. AC is automatically increased (decreased) by 1. When RS = 0 and R/W = 1, AC can be
read through ports DB0 - DB6.
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| S6B0086 | 80 CH SEGMENT / COMMON DRIVER FOR DOT MATRIX LCD |
| S6B0107 | 64CH COMMON DRIVER FOR DOT MATRIX LCD |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S6A0072 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:16COM/40SEG DOT MATRIX LCD CONTROLLER & DRIVER |
| 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 |
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