參數(shù)資料
型號： MC56F8322VFAE
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 數(shù)字信號處理
英文描述： 0-BIT, 120 MHz, OTHER DSP, PQFP48
封裝： ROHS COMPLIANT, LQFP-48
文件頁數(shù)： 59/136頁
文件大?。?/td> 719K
代理商： MC56F8322VFAE
External Clock Operation
56F8322 Technical Data, Rev. 16
Freescale Semiconductor
29
Preliminary
3.2.2
Ceramic Resonator (Default)
It is also possible to drive the internal oscillator with a ceramic resonator, assuming the overall system
design can tolerate the reduced signal integrity. A typical ceramic resonator circuit is shown in Figure 3-2.
Refer to the supplier’s recommendations when selecting a ceramic resonator and associated components.
The resonator and components should be mounted as near as possible to the EXTAL and XTAL pins.
Figure 3-2 Connecting a Ceramic Resonator
Note:
The OCCS_COHL bit must be set to 0 when a crystal resonator is used. The reset condition on the
OCCS_COHL bit is 0. Please see the COHL bit in the Oscillator Control (OSCTL) register, discussed
in the 56F8300 Peripheral User Manual.
3.2.3
External Clock Source
The recommended method of connecting an external clock is illustrated in Figure 3-3. The external clock
source is connected to XTAL and the EXTAL pin is grounded.
Figure 3-3 Connecting an External Clock Register
EXTAL XTAL
Rz
Sample External Ceramic Resonator Parameters:
Rz = 750 KΩ
EXTAL XTAL
Rz
C1
CL1
CL2
C2
Resonator Frequency = 4 - 8MHz (optimized for 8MHz)
3 Terminal
2 Terminal
CLKMODE = 0
XTAL
EXTAL
External
VSS
Clock
Note: when using an external clocking
source with this configuration, the
CLKMODE and COHL bits
of the OSCTL register should be set to 1.
or GPIO
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相關代理商/技術參數(shù)
參數(shù)描述
MC56F8322VFAER2 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 安裝風格:SMD/SMT
MC56F8323 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
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MC56F8323EVM 制造商:Freescale Semiconductor 功能描述:Tools Development kit Kit Con
MC56F8323EVME 功能描述:開發(fā)板和工具包 - 其他處理器 MC56F8323 EVAL BRD RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
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