參數(shù)資料
型號： MC56F8323
廠商： Motorola, Inc.
英文描述： 16-bit Hybrid Controllers
中文描述： 16位混合控制器
文件頁數(shù)： 65/140頁
文件大?。?/td> 1981K
代理商： MC56F8323
56F8323 Technical Data, Rev. 11.0
30
Freescale Semiconductor
Preliminary
OSCTL (oscillator control) register allow the user to set in an additional offset (trim) to this preset value
to increase or decrease capacitance. Upon power-up, the default value of this trim is 512 units. Each unit
added or deleted changes the output frequency by about 0.1%, allowing incremental adjustment until the
desired frequency accuracy is achieved.
The internal oscillator is calibrated at the factory to 8MHz and the TRIM value is stored in the Flash
information block and loaded to the FMOPT1 register at reset. When using the relaxation oscillator, the
boot code should read the FMOPT1 register and set this value as OSCTL TRIM. For further information,
see the 56F8300 Peripherals User Manual.
3.4 Internal Clock Operation
At reset, both oscillators will be powered up; however, the relaxation oscillator will be the default clock
reference for the PLL. Software should power down the block not being used and program the PLL for the
correct frequency.
Figure 3-4 Internal Clock Operation
Crystal
OSC
Relaxation
OSC
CLK_MODE
XTAL
EXTAL
MUX
PRECS
PLLCID
PLL
x (1 to 128)
Postscaler
÷ (1, 2, 4, 8)
÷ 2
Prescaler
÷ (1, 2, 4, 8)
Lock
Detector
Loss of
Reference
Clock
Detector
MU
X
SYS_CLK2
source to
the SIM
Postscaler CLK
PLLDB
PLLCOD
LCK
Bus Interface
& Control
Bus
Interface
FREF
FEEDBA
CK
loss of reference
clock interrupt
MS
T
R
_
O
S
C
FOUT
FOUT/2
ZSRC
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC56F8323EVM 功能描述:開發(fā)板和工具包 - 其他處理器 MC56F832X Dev Kit RoHS:否 制造商:Freescale Semiconductor 產(chǎn)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:
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(chǎn)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:
MC56F8323EVME 制造商:Freescale Semiconductor 功能描述:Evaluation Kit for MC56F832x and MC56F81
MC56F8323MFB60 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 安裝風格:SMD/SMT
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