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| 型號(hào)： | MC56F8355MFGE |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 27/172頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DSP 16BIT 60MHZ 128-LQFP |
| 標(biāo)準(zhǔn)包裝： | 72 |
| 系列： | 56F8xxx |
| 核心處理器： | 56800E |
| 芯體尺寸： | 16-位 |
| 速度： | 60MHz |
| 連通性： | CAN，EBI/EMI，SCI，SPI |
| 外圍設(shè)備： | POR，PWM，溫度傳感器，WDT |
| 輸入/輸出數(shù)： | 49 |
| 程序存儲(chǔ)器容量： | 264KB（132K x 16） |
| 程序存儲(chǔ)器類型： | 閃存 |
| RAM 容量： | 10K x 16 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.25 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 16x12b |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 125°C |
| 封裝/外殼： | 128-LQFP |
| 包裝： | 托盤 |
| 配用： | MC56F8367EVME-ND - EVAL BOARD FOR MC56F83X |
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56F8355 Technical Data, Rev. 17
122
Freescale Semiconductor
Preliminary
The 56800E core contains both STOP and WAIT instructions. Both put the CPU to sleep. For lowest
power consumption in Stop mode, the PLL can be shut down. This must be done explicitly before entering
Stop mode, since there is no automatic mechanism for this. When the PLL is shut down, the 56800E
system clock must be set equal to the oscillator output.
Some applications require the 56800E STOP and WAIT instructions to be disabled. To disable those
instructions, write to the SIM control register (SIM_CONTROL), described in Part 6.5.1. This procedure
can be on either a permanent or temporary basis. Permanently assigned applications last only until their
next reset.
6.9 Resets
The SIM supports four sources of reset. The two asynchronous sources are the external RESET pin and
the Power-On Reset (POR). The two synchronous sources are the software reset, which is generated within
the SIM itself by writing to the SIM_CONTROL register, and the COP reset.
Reset begins with the assertion of any of the reset sources. Release of reset to various blocks is sequenced
to permit proper operation of the device. A POR reset is first extended for 221 clock cycles to permit
stabilization of the clock source, followed by a 32 clock window in which SIM clocking is initiated. It is
then followed by a 32 clock window in which peripherals are released to implement Flash security, and,
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 56F8355/56F8155 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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC56F8355VFG60 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Hybrid Controllers |
| MC56F8355VFGE | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| MC56F8356 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:56F8356 16-bit Hybrid Controller |
| MC56F8356MFV60 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC56F8356MFVE | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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