- 您现在的位置：买卖IC网 > PDF目录80351 > MC56F8347VPY60 (FREESCALE SEMICONDUCTOR INC) 16-BIT, 120 MHz, OTHER DSP, PQFP160 PDF资料下载
参数资料
| 型号： | MC56F8347VPY60 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 16-BIT, 120 MHz, OTHER DSP, PQFP160 |
| 封装： | PLASTIC, LQFP-160 |
| 文件页数： | 25/172页 |
| 文件大小： | 2620K |
| 代理商： | MC56F8347VPY60 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页第159页第160页第161页第162页第163页第164页第165页第166页第167页第168页第169页第170页第171页第172页
56F8347 Technical Data, Rev.11
120
Freescale Semiconductor
Preliminary
finally, followed by a 32 clock window in which the core is initialized. After completion of the described
reset sequence, application code will begin execution.
Resets may be asserted asynchronously, but are always released internally on a rising edge of the system
clock.
Part 7 Security Features
The 56F8347/56F8147 offer security features intended to prevent unauthorized users from reading the
contents of the Flash Memory (FM) array. The Flash security consists of several hardware interlocks that
block the means by which an unauthorized user could gain access to the Flash array.
However, part of the security must lie with the user’s code. An extreme example would be user’s code that
dumps the contents of the internal program, as this code would defeat the purpose of security. At the same
time, the user may also wish to put a “backdoor” in his program. As an example, the user downloads a
security key through the SCI, allowing access to a programming routine that updates parameters stored in
another section of the Flash.
7.1 Operation with Security Enabled
Once the user has programmed the Flash with his application code, the device can be secured by
programming the security bytes located in the FM configuration field, which occupies a portion of the FM
array. These non-volatile bytes will keep the part secured through reset and through power-down of the
device. Only two bytes within this field are used to enable or disable security. Refer to the Flash Memory
section in the 56F8300 Peripheral User Manual for the state of the security bytes and the resulting state
of security. When Flash security mode is enabled in accordance with the method described in the Flash
Memory module specification, the device will disable external P-space accesses (disabling EXTBOOT =
1 mode), restrict memory and disable the core EOnCE debug capabilities. Normal program execution is
otherwise unaffected.
7.2 Flash Access Blocking Mechanisms
The 56F8347/56F8147 have several operating functional and test modes. Effective Flash security must
address operating mode selection and anticipate modes in which the on-chip Flash can be compromised
and read without explicit user permission. Methods to block these are outlined in the next subsections.
7.2.1
Forced Operating Mode Selection
At boot time, the SIM determines in which functional modes the device will operate. These are:
Internal Boot Mode
External Boot Mode
Secure Mode
When Flash security is enabled as described in the Flash Memory module specification, the device will
boot in internal boot mode, disable all access to external P-space, and start executing code from the Boot
Flash at address 0x02_0000.
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MC56F8147VVFE,MC56F8347VVFE
相关PDF资料 |
PDF描述 |
|---|---|
| MTFDCAE008SAJ-1M1IT | FLOPPY DISK DRIVE CONTROLLER, XMA |
| MPC8541EVTAJFX | 32-BIT, 1000 MHz, RISC PROCESSOR, CBGA360 |
| MK1491E-14RLFTR | 75 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28 |
| MPC8349ECVVAJF | 32-BIT, 533 MHz, MICROPROCESSOR, PBGA672 |
| MK1417SLF | 27 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC56F8347VPYE | 功能描述:数字信号处理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| MC56F8347VVF | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| MC56F8347VVFE | 功能描述:IC DGTL SIGNAL CTLR 160-MAPBGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:56F8xxx 标准包装:1 系列:87C 核心处理器:MCS 51 芯体尺寸:8-位 速度:16MHz 连通性:SIO 外围设备:- 输入/输出数:32 程序存储器容量:8KB（8K x 8） 程序存储器类型:OTP EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4 V ~ 6 V 数据转换器:- 振荡器型:外部 工作温度:0°C ~ 70°C 封装/外壳:44-DIP 包装:管件 其它名称:864285 |
| MC56F8355 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-Bit Digital Signal Controllers |
| MC56F8355MFG60 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Hybrid Controllers |
发布紧急采购，3分钟左右您将得到回复。