參數(shù)資料
型號: SAK-XC2267M-104F80LAA
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP100
封裝: 0.50 MM PITCH, GREEN, PLASTIC, LQFP-100
文件頁數(shù): 71/129頁
文件大?。?/td> 1131K
代理商: SAK-XC2267M-104F80LAA
XC2268M/67M, XC2265M/64M/63M
XC2000 Family Derivatives / Base Line
Functional Description
Data Sheet
46
V2.0, 2009-03
3.4
Memory Protection Unit (MPU)
The XC226xM’s Memory Protection Unit (MPU) protects user-specified memory areas
from unauthorized read, write, or instruction fetch accesses. The MPU can protect the
whole address space including the peripheral area. This completes establisched
mechanisms such as the register security mechanism or stack overrun/underrun
detection.
Four Protection Levels support flexible system programming where operating system,
low level drivers, and applications run on separate levels. Each protection level permits
different access restrictions for instructions and/or data.
Every access is checked (if the MPU is enabled) and an access violating the permission
rules will be marked as invalid and leads to a protection trap.
A set of protection registers for each protection level specifies the address ranges and
the access permissions. Applications requiring more than 4 protection levels can
dynamically re-program the protection registers.
3.5
Memory Checker Module (MCHK)
The XC226xM’s Memory Checker Module calculates a checksum (fractional polynomial
division) on a block of data, often called Cyclic Redundancy Code (CRC). It is based on
a 32-bit linear feedback shift register and may, therefore, also be used to generate
pseudo-random numbers.
The Memory Checker Module is a 16-bit parallel input signature compression circuitry
which enables error detection within a block of data stored in memory, registers, or
communicated e.g. via serial communication lines. It reduces the probability of error
masking due to repeated error patterns by calculating the signature of blocks of data.
The polynomial used for operation is configurable, so most of the commonly used
polynomials may be used. Also, the block size for generating a CRC result is
configurable via a local counter. An interrupt may be generated if testing the current data
block reveals an error.
An autonomous CRC compare circuitry is included to enable redundant error detection,
e.g. to enable higher safety integrity levels.
The Memory Checker Module provides enhanced fault detection (beyond parity or ECC)
for data and instructions in volatile and non volatile memories. This is especially
important for the safety and reliability of embedded systems.
相關PDF資料
PDF描述
SAK-XC2285M-104F80LAA RISC MICROCONTROLLER, PQFP144
SAK-XC2285M-56F80LAA RISC MICROCONTROLLER, PQFP144
SAF-XC2287M-72F80LAA RISC MICROCONTROLLER, PQFP144
SAF-XC2285M-72F80LAA RISC MICROCONTROLLER, PQFP144
SAK-XC2723X-20F66V 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQCC48
相關代理商/技術參數(shù)
參數(shù)描述
SAK-XC2267M-72F80L AA 功能描述:IC MCU 32BIT FLASH 100-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:XC22xxM 標準包裝:330 系列:- 核心處理器:- 芯體尺寸:8/16-位 速度:40MHz 連通性:UART/USART 外圍設備:DMA,PWM,WDT 輸入/輸出數(shù):32 程序存儲器容量:- 程序存儲器類型:外部程序存儲器 EEPROM 大小:- RAM 容量:- 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:100-BQFP 包裝:管件
SAK-XC2267M-72F80LAA 功能描述:16位微控制器 - MCU 16 BIT FLASH RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
SAK-XC2268I-136F128L AA 功能描述:IC MCU 16/32 1088KB FLSH 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:XC22xxI 標準包裝:1,900 系列:XC8xx 核心處理器:XC800 芯體尺寸:8-位 速度:27MHz 連通性:CAN,SPI,SSI,UART/USART 外圍設備:欠壓檢測/復位,POR,PWM,WDT 輸入/輸出數(shù):40 程序存儲器容量:52KB(52K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:3.25K x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:64-LQFP 包裝:帶卷 (TR)
SAK-XC2268N-40F80L AA 功能描述:IC MCU 16/32B 320KB FLSH 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:XC22xxN 標準包裝:330 系列:- 核心處理器:- 芯體尺寸:8/16-位 速度:40MHz 連通性:UART/USART 外圍設備:DMA,PWM,WDT 輸入/輸出數(shù):32 程序存儲器容量:- 程序存儲器類型:外部程序存儲器 EEPROM 大小:- RAM 容量:- 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:100-BQFP 包裝:管件
SAK-XC2268N-40F80LAA 制造商:Rochester Electronics LLC 功能描述: 制造商:Infineon Technologies AG 功能描述: