參數(shù)資料
型號: MS80C31-20D
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 20 MHz, MICROCONTROLLER, PQCC44
文件頁數(shù): 127/170頁
文件大?。?/td> 4133K
代理商: MS80C31-20D
6
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
4.
CPU Core
This section discusses the AVR core architecture in general. The main function of the CPU core is to ensure cor-
rect program execution. The CPU must therefore be able to access memories, perform calculations, control
peripherals, and handle interrupts.
4.1
Architectural Overview
Figure 4-1.
Block Diagram of the AVR Architecture
In order to maximize performance and parallelism, the AVR uses a Harvard architecture – with separate memories
and buses for program and data. Instructions in the program memory are executed with a single level pipelining.
While one instruction is being executed, the next instruction is pre-fetched from the program memory. This concept
enables instructions to be executed in every clock cycle. The program memory is In-System reprogrammable
Flash memory.
The fast-access Register File contains 16 x 8-bit general purpose working registers with a single clock cycle
access time. This allows single-cycle Arithmetic Logic Unit (ALU) operation. In a typical ALU operation, two oper-
ands are output from the Register File, the operation is executed, and the result is stored back in the Register File
– in one clock cycle.
Flash
Program
Memory
Instruction
Register
Instruction
Decoder
Program
Counter
Control Lines
16 x 8
General
Purpose
Registrers
ALU
Status
and Control
I/O Lines
Data Bus 8-bit
Data
SRAM
Dir
ec
tA
ddr
essing
In
d
ir
e
ct
A
ddr
essing
Interrupt
Unit
Watchdog
Timer
Analog
Comparator
Timer/Counter 0
ADC
相關PDF資料
PDF描述
MS80C51T-20D 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQCC44
MT80C51T-20R 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
MS80C51-25D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQCC44
MP80C51C-30D 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PDIP40
MF180C31-12R 8-BIT, 12 MHz, MICROCONTROLLER, PQFP44
相關代理商/技術參數(shù)
參數(shù)描述
MS8100 制造商:MCC 制造商全稱:Micro Commercial Components 功能描述:8 Amp Schottky Barrier Rectifier 20 to 100 Volts
MS8100.D 制造商:Colibrys SA 功能描述:MEMS CAPACITIVE ACCELEROMETERS - Trays
MS8104160 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:(262,214-word x 8-Bits) x 2 Dual FIFO
MS8104160A 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Dual FIFO (262,214 Words 】 8 Bits) 】 2
MS8104160A-XXTB 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Dual FIFO (262,214 Words 】 8 Bits) 】 2