參數(shù)資料
型號(hào)： MQ80C52TXXX-12SHXXX:RD
廠商： TEMIC SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44
文件頁數(shù)： 102/134頁
文件大?。?/td> 3805K
7
8068U–AVR–06/2013
XMEGA A3
Not recommended for new designs -
Use XMEGA A3U series
6.
AVR CPU
6.1
Features
8/16-bit high performance AVR RISC Architecture
– 138 instructions
– Hardware multiplier
32x8-bit registers directly connected to the ALU
Stack in RAM
Stack Pointer accessible in I/O memory space
Direct addressing of up to 16M bytes of program and data memory
True 16/24-bit access to 16/24-bit I/O registers
Support for 8-, 16- and 32-bit Arithmetic
Configuration Change Protection of system critical features
6.2
Overview
The XMEGA A3 uses an 8/16-bit AVR CPU. The main function of the AVR CPU is to ensure cor-
rect program execution. The CPU must therefore be able to access memories, perform
calculations and control peripherals. Interrupt handling is described in a separate section. Figure
6-1 on page 7 shows the CPU block diagram.
Figure 6-1.
CPU block diagram
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 pipeline. While one
instruction is being executed, the next instruction is pre-fetched from the program memory.
Flash
Program
Memory
Instruction
Decode
Program
Counter
OCD
32 x 8 General
Purpose
Registers
ALU
Multiplier/
DES
Instruction
Register
STATUS/
CONTROL
Peripheral
Module 1
Peripheral
Module 2
EEPROM
PMIC
SRAM
DATA BUS
相關(guān)PDF資料
PDF描述
MQ80C52TXXX-25:R 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
MQ80C52EXXX-12/883:RD 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44
MC80C52XXX-30SHXXX:D 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40
MR80C52CXXX-16SHXXX:RD 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQCC44
MR80C52CXXX-36:R 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQCC44
相關(guān)代理商/技術(shù)參數(shù)
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MQ82380-20 制造商:Rochester Electronics LLC 功能描述:- Bulk
MQ82380-20/R 制造商:Rochester Electronics LLC 功能描述:
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