參數(shù)資料
型號： MC56F8345VFG60
廠商： MOTOROLA INC
元件分類： 數(shù)字信號處理
英文描述： 56F8345 16-bit Hybrid Controller
中文描述： 0-BIT, 240 MHz, OTHER DSP, PQFP128
封裝： 14 X 20 MM, 0.50 MM PITCH, 1.40 MM HEIGHT, PLASTIC, LQFP-128
文件頁數(shù)： 31/148頁
文件大小： 1420K
代理商： MC56F8345VFG60
Registers
56F8345 Technical Data
Preliminary
31
3.2.2
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 3-3
. 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.
Ceramic Resonator (Default)
Figure 3-3 Connecting a Ceramic Resonator
Note:
The OCCS_COHL bit must be set to 0 when a ceramic 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’s Manual
.
3.2.3
The recommended method of connecting an external clock is illustrated in
Figure 3-4
. The
external clock source is connected to XTAL and the EXTAL pin is grounded.
Set OCCS_COHL bit
high when using an external clock source as well.
External Clock Source
Figure 3-4 Connecting an External Clock Signal Register
3.3 Registers
When referring to the register definitions for the OCCS in the
56F8300 Peripheral User Manual
,
use the register definitions
without
the internal Relaxation Oscillator, since the 56F8345 does
NOT contain this oscillator.
EXTAL XTAL
R
z
Sample External Ceramic Resonator Parameters:
R
z
= 750 K
EXTAL XTAL
R
z
C1
CL1
CL2
C2
Resonator Frequency = 4 - 8MHz (optimized for 8MHz)
3 Terminal
2 Terminal
CLKMODE = 0
56F8345
XTAL
EXTAL
External
Clock
V
SS
Note: When using an external clocking
source with this configuration, the input
“CLKMODE” should be high and COHL bit in
the OSCTL register should be set to 1.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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參數(shù)描述
MC56F8345VFGE 功能描述:數(shù)字信號處理器和控制器 - 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
MC56F8346 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
MC56F8346EVM 制造商:Freescale Semiconductor 功能描述:Tools Development kit Kit Contents:Inst
MC56F8346MFV60 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS 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
MC56F8346MFVE 功能描述:數(shù)字信號處理器和控制器 - 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
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