參數(shù)資料
型號： SAH-XC2723X-20F66V
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQCC48
封裝： 0.50 MM PITCH, GREEN, PLASTIC, VQFN-48
文件頁數(shù)： 42/112頁
文件大?。?/td> 3116K
代理商： SAH-XC2723X-20F66V
XC2723X
XC2000 Family / Econo Line
Functional Description
PRELIMINARY
Data Sheet
31
V1.0, 2010-12
3.3
Memory Protection Unit (MPU)
The XC2723X’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 established
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.
3.4
Memory Checker Module (MCHK)
The XC2723X’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(guān)PDF資料
PDF描述
SAK-XC2765X-72F80LAA 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP100
SAK-XC2768X-136F128L 32-BIT, FLASH, 128 MHz, RISC MICROCONTROLLER, PQFP100
SAK-XE160FU-4F40R 16-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PDSO38
SAK-XE169FH-136F100L 16-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PQFP176
SAL-TC1766-192F80U 32-BIT, FLASH, 80 MHz, MICROCONTROLLER, UUC231
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAI Y-4S M8-M8 制造商:Weidmuller 功能描述:SPLITTER PLUG TO 2X RCPT M8 制造商:Weidmuller 功能描述:SPLITTER, PLUG TO 2X RCPT, M8, 4 WAY 制造商:Weidmuller 功能描述:SPLITTER, PLUG TO 2X RCPT, M8, 4 WAY, No. of Ports:2, SVHC:No SVHC (20-Jun-2013)
SAI01 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:Surface-Mount, Separate Excitation Switching Type
SAI01-1 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:Surface-mount and Separate Excitation Type
SAI01V1 制造商:Sanken Electric Co Ltd 功能描述:IC REG BUCK 5V 0.5A PS-4PIN
SAI02 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:Surface-mount and Separate Excitation Type
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*