參數(shù)資料
型號： 101-0552
廠商： Rabbit Semiconductor
文件頁數(shù)： 75/138頁
文件大?。?/td> 0K
描述： KIT DEV RABBITCORE/RCM3200
標(biāo)準(zhǔn)包裝： 1
系列： RabbitCore 3000
類型： MPU 模塊
適用于相關(guān)產(chǎn)品： RCM3200
所含物品： RabbitCore 模塊、開發(fā)板、交流適配器、纜線和 Dynamic C? 光盤
產(chǎn)品目錄頁面： 620 (CN2011-ZH PDF)
其它名稱： 316-1023
User’s Manual
35
4.4 Other Hardware
4.4.1 Clock Doubler
The RCM3200 takes advantage of the Rabbit 3000 microprocessor’s internal clock doubler.
A built-in clock doubler allows half-frequency crystals to be used to reduce radiated emis-
sions. The 44.2 MHz frequency specified for the RCM3200 and the RCM3220 is gener-
ated using a 22.12 MHz resonator.
The clock doubler may be disabled if 44.2 MHz clock speeds are not required. Disabling
the Rabbit 3000 microprocessor’s internal clock doubler will reduce power consumption
and further reduce radiated emissions. The clock doubler is disabled with a simple config-
uration macro as shown below.
4.4.2 Spectrum Spreader
The Rabbit 3000 features a spectrum spreader, which helps to mitigate EMI problems. By
default, the spectrum spreader is on automatically, but it may also be turned off or set to a
stronger setting. The means for doing so is through a simple configuration macro as shown
below.
NOTE: Refer to the Rabbit 3000 Microprocessor User’s Manual for more information
on the spectrum-spreading setting and the maximum clock speed.
1. Select the “Defines” tab from the Dynamic C Options > Project Options menu.
2. Add the line CLOCK_DOUBLED=0 to always disable the clock doubler.
The clock doubler is enabled by default, and usually no entry is needed. If you need to
specify that the clock doubler is always enabled, add the line CLOCK_DOUBLED=1 to
always enable the clock doubler.
3. Click OK to save the macro. The clock doubler will now remain off whenever you are
in the project file where you defined the macro.
1. Select the “Defines” tab from the Dynamic C Options > Project Options menu.
2. Normal spreading is the default, and usually no entry is needed. If you need to specify
normal spreading, add the line
ENABLE_SPREADER=1
For strong spreading, add the line
ENABLE_SPREADER=2
To disable the spectrum spreader, add the line
ENABLE_SPREADER=0
NOTE: The strong spectrum-spreading setting is unnecessary for the RCM3200.
3. Click OK to save the macro. The spectrum spreader will now be set to the state specified
by the macro value whenever you are in the project file where you defined the macro.
相關(guān)PDF資料
PDF描述
VI-JTM-EZ CONVERTER MOD DC/DC 10V 25W
VI-JTJ-EZ CONVERTER MOD DC/DC 36V 25W
REC3-4805DRWZ/H4/C CONV DC/DC 3W 18-72VIN +/-05VOUT
REC3-4805DRWZ/H4/A CONV DC/DC 3W 18-72VIN +/-05VOUT
REC3-243.3DRWZ/H6/C CONV DC/DC 3W 9-36VIN +/-3.3VOUT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
10-105520-08P 制造商:Amphenol Aerospace 功能描述:PLUG
10-105520-08S 制造商:Amphenol Aerospace 功能描述:PLUG
10-105520-24P 制造商:Amphenol Aerospace 功能描述:PLUG
10-105520-24S 制造商:Amphenol Aerospace 功能描述:PLUG
101-0553 功能描述:KIT DEV RABBIT RCM3200 INTL RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 通用嵌入式開發(fā)板和套件（MCU、DSP、FPGA、CPLD等） 系列:RabbitCore 3000 標(biāo)準(zhǔn)包裝:1 系列:PICDEM™ 類型:MCU 適用于相關(guān)產(chǎn)品:PIC10F206，PIC16F690，PIC16F819 所含物品:板，線纜，元件，CD，PICkit 編程器 產(chǎn)品目錄頁面:659 (CN2011-ZH PDF)
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*