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参数资料
型号： SAX-XC878CM-13FFI5V
厂商： INFINEON TECHNOLOGIES AG
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
封装： PLASTIC, TQFP-64
文件页数： 64/141页
文件大小： 2385K
代理商： SAX-XC878CM-13FFI5V
XC878CLM
Functional Description
Data Sheet
22
V1.1, 2009-08
3.2.1
Memory Protection Strategy
The XC878 memory protection strategy includes:
Basic protection: The user is able to block any external access via the boot option to
any memory
Read-out protection: The user is able to protect the contents in the Flash
Flash program and erase protection
These protection strategies are enabled by programming a valid password (16-bit non-
one value) via Bootstrap Loader (BSL) mode 6.
3.2.1.1
Flash Memory Protection
As long as a valid password is available, all external access to the device, including the
Flash, will be blocked.
For additional security, the Flash hardware protection can be enabled to implement a
second layer of read-out protection, as well as to enable program and erase protection.
Flash hardware protection is available only for Flash devices and comes in two modes:
Mode 0: Only the P-Flash is protected; the D-Flash is unprotected
Mode 1: Both the P-Flash and D-Flash are protected
The selection of each protection mode and the restrictions imposed are summarized in
Table 4.
Table 4
Flash Protection Modes
Flash
Protection
Without hardware
protection
With hardware protection
Hardware
Protection
Mode
-0
1
Activation
Program a valid password via BSL mode 6
Selection
Bit 13 of password = 0
Bit 13 of password = 1
MSB of password = 0
Bit 13 of password = 1
MSB of password = 1
P-Flash
contents
can be read
by
Read instructions in
any program memory
Read instructions in
the P-Flash
Read instructions in
the P-Flash or D-
Flash
External
access to P-
Flash
Not possible
相关PDF资料
PDF描述
SAX-XC878M-16FFI3V3 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
SAX-XC878M-16FFI5V 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
SAX-XC878M-13FFI5V 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
SAX-XC878-16FFA3V3 RISC MICROCONTROLLER, PQFP64
SB80486DX2SC50 32-BIT, 50 MHz, RISC PROCESSOR, PQFP208
相关代理商/技术参数
参数描述
SAX-XC878CM-16FFA 5V AC 功能描述:8位微控制器 -MCU 8-Bit Single-Chip Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAX-XC878CM-16FFA5V 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller
SAX-XC878CM-16FFA5VAA 功能描述:8位微控制器 -MCU 8 BIT FLASH RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAX-XC878L-13FFA 5V AA 功能描述:IC MCU 8BIT FLASH 64-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:XC8xx 标准包装:1,900 系列:XC8xx 核心处理器:XC800 芯体尺寸:8-位 速度:27MHz 连通性:CAN，SPI，SSI，UART/USART 外围设备:欠压检测/复位，POR，PWM，WDT 输入/输出数:40 程序存储器容量:52KB（52K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:3.25K x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:64-LQFP 包装:带卷 (TR)
SAX-XC878L-13FFA5VAA 功能描述:8位微控制器 -MCU 8 BIT FLASH RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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