參數(shù)資料
型號： MC56F8347VPY60
廠商： MOTOROLA INC
元件分類： 數(shù)字信號處理
英文描述： 16-BIT, 120 MHz, OTHER DSP, PQFP160
封裝： LQFP-160
文件頁數(shù)： 18/160頁
文件大?。?/td> 2217K
代理商： MC56F8347VPY60
114
56F8347 Technical Data
Preliminary
6.6 Clock Generation Overview
The SIM uses an internal master clock from the OCCS (CLKGEN) module to produce the
peripheral and system (core and memory) clocks. The maximum master clock frequency is
120MHz. Peripheral and system clocks are generated at half the master clock frequency and
therefore at a maximum 60MHz. The SIM provides power modes (Stop, Wait) and clock enables
(SIM_PCE register, CLK_DIS, ONCE_EBL) to control which clocks are in operation. The OCCS,
power modes, and clock enables provide a flexible means to manage power consumption.
Power utilization can be minimized in several ways. In the OCCS, crystal oscillator, and PLL may
be shut down when not in use. When the PLL is in use, its prescaler and postscaler can be used to
limit PLL and master clock frequency. Power modes permit system and/or peripheral clocks to be
disabled when unused. Clock enables provide the means to disable individual clocks. Some
peripherals provide further controls to disable unused subfunctions. Refer to Part 3 On-Chip
Clock Synthesis (OCCS) and the 56F8300 Peripheral User Manual for further details.
6.7 Power-Down Modes Overview
The 56F8347 operates in one of three power-down modes, as shown in Table 6-3
.
All peripherals, except the COP/watchdog timer, run off the IPBus clock frequency, which is the
same as the main processor frequency in this architecture. The maximum frequency of operation
is SYS_CLK = 60MHz.
Table 6-3 Clock Operation in Power-Down Modes
Mode
Core Clocks
Peripheral Clocks
Description
Run
Active
Device is fully functional
Wait
Core and memory
clocks disabled
Active
Peripherals are active and can produce interrupts if
they have not been masked off.
Interrupts will cause the core to come out of its
suspended state and resume normal operation.
Typically used for power-conscious applications.
Stop
System clocks continue to be generated in
the SIM, but most are gated prior to
reaching memory, core and peripherals.
The only possible recoveries from Stop mode are:
1. CAN traffic (1st message will be lost)
2. Non-clocked interrupts
3. COP reset
4. External reset
5. Power-on reset
相關(guān)PDF資料
PDF描述
MC56F8347MPY60 16-BIT, 120 MHz, OTHER DSP, PQFP160
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MC56F8356MFVE 16-BIT, 120 MHz, OTHER DSP, PQFP144
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC56F8347VPYE 功能描述:數(shù)字信號處理器和控制器 - 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 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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
MC56F8347VVF 制造商:FREESCALE 制造商全稱: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 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:56F8xxx 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲器容量:8KB（8K x 8） 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
MC56F8355 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-Bit Digital Signal Controllers
MC56F8355MFG60 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Hybrid Controllers
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