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參數(shù)資料
| 型號： | MC68331CFC20B1 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132 |
| 封裝： | 0.950 X 0.950 INCH, 0.025 INCH PITCH, PLASTIC, QFP-132 |
| 文件頁數(shù)： | 38/90頁 |
| 文件大小： | 481K |
| 代理商： | MC68331CFC20B1 |
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MC68331
MOTOROLA
MC68331TS/D
43
4 Central Processor Unit
Based on the powerful MC68020, the CPU32 processing module provides enhanced system perfor-
mance and also uses the extensive software base for the Motorola M68000 family.
4.1 Overview
The CPU32 is fully object code compatible with the M68000 Family, which excels at processing calcu-
lation-intensive algorithms and supporting high-level languages. The CPU32 supports all of the
MC68010 and most of the MC68020 enhancements, such as virtual memory support, loop mode oper-
ation, instruction pipeline, and 32-bit mathematical operations. Powerful addressing modes provide
compatibility with existing software programs and increase the efficiency of high-level language compil-
ers. Special instructions, such as table lookup and interpolate and low-power stop, support the specific
requirements of controller applications. Also included is the background debugging mode, an alternate
operating mode that suspends normal operation and allows the CPU to accept debugging commands
from the development system.
Ease of programming is an important consideration in using a microcontroller. The CPU32 instruction
set is optimized for high performance. The eight 32-bit general-purpose data registers readily support
8-bit (byte), 16-bit (word), and 32-bit (long word) operations. Ease of program checking and diagnosis
is further enhanced by trace and trap capabilities at the instruction level.
Use of high-level languages is increasing as controller applications become more complex and control
programs become larger. High-level languages aid rapid development of software, with less error, and
are readily portable. The CPU32 instruction set supports high-level languages.
4.2 Programming Model
The CPU32 has sixteen 32-bit general registers, a 32-bit program counter, one 32-bit supervisor stack
pointer, a 16-bit status register, two alternate function code registers, and a 32-bit vector base register.
The programming model of the CPU32 consists of a user model and supervisor model, corresponding
to the user and supervisor privilege levels. Some instructions available at the supervisor level are not
available at the user level, allowing the supervisor to protect system resources from uncontrolled ac-
cess. Bit S in the status register determines the privilege level.
The user programming model remains unchanged from previous M68000 Family microprocessors. Ap-
plication software written to run at the nonprivileged user level migrates without modification to the
CPU32 from any M68000 platform. The move from SR instruction, however, is privileged in the CPU32.
It is not privileged in the M68000.
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| MC68331CPV20B1 | 32-BIT, 20 MHz, MICROCONTROLLER, PQFP144 |
| MC68331CFC25B1 | 32-BIT, 25 MHz, MICROCONTROLLER, PQFP132 |
| MC68331CPV16B1 | 32-BIT, 16 MHz, MICROCONTROLLER, PQFP144 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68331CFC25 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68331CFC25B1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68331CFV16 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:User’s Manual |
| MC68331CFV20 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:User’s Manual |
| MC68331CPV16 | 功能描述:IC MCU 32BIT 16MHZ 144-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:M683xx 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
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