在线国产亚欧一级片,伊人宅男网

您好，
買(mǎi)賣(mài)IC網(wǎng)歡迎您。
請(qǐng)登錄
免費(fèi)注冊(cè)

您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄45277 > MD80C32U-30:D (ATMEL CORP) MICROCONTROLLER PDF資料下載

型號(hào)：	MD80C32U-30:D
廠商：	ATMEL CORP
元件分類(lèi)：	微控制器/微處理器
英文描述：	MICROCONTROLLER
文件頁(yè)數(shù)：	544/1262頁(yè)
文件大?。?/td>	3503K

11028E–ATARM–22-Apr-13

The DIVA field is used to control divider itself. A value between 0 and 255 can be pro-

grammed. Divider output is divider input divided by DIVA parameter. By default DIVA

parameter is set to 0 which means that divider is turned off.

The OUTA field is used to select the PLLA output frequency range.

The MULA field is the PLLA multiplier factor. This parameter can be programmed between 0

and 254. If MULA is set to 0, PLLA will be turned off, otherwise the PLLA output frequency is

PLLA input frequency multiplied by (MULA + 1).

The PLLACOUNT field specifies the number of slow clock cycles before LOCKA bit is set in

the PMC_SR register after CKGR_PLLAR register has been written.

Once the PMC_PLLAR register has been written, the user must wait for the LOCKA bit to be

set in the PMC_SR register. This can be done either by polling the status register or by wait-

ing the interrupt line to be raised if the associated interrupt to LOCKA has been enabled in

the PMC_IER register. All parameters in CKGR_PLLAR can be programmed in a single write

operation. If at some stage one of the following parameters, MULA, DIVA is modified,

LOCKA bit will go low to indicate that PLLA is not ready yet. When PLLA is locked, LOCKA

will be set again. The user is constrained to wait for LOCKA bit to be set before using the

PLLA output clock.

Code Example:

write_register(CKGR_PLLAR,0x00040805)

If PLLA and divider are enabled, the PLLA input clock is the main clock. PLLA output clock is

PLLA input clock multiplied by 5. Once CKGR_PLLAR has been written, LOCKA bit will be

set after eight slow clock cycles.

Setting Bias and High Speed PLL (UPLL) for UTMI

The UTMI PLL is enabled by setting the UPLLEN field in the CKGR_UCKR register. The

UTMI Bias must is enabled by setting the BIASEN field in the CKGR_UCKR register in the

same time. In some cases it may be advantageous to define a start-up time. This can be

achieved by writing a value in the PLLCOUNT field in the CKGR_UCKR register.

Once this register has been correctly configured, the user must wait for LOCKU field in the

PMC_SR register to be set. This can be done either by polling the status register or by wait-

ing the interrupt line to be raised if the associated interrupt to LOCKU has been enabled in

the PMC_IER register.

Selection of Master Clock and Processor Clock

The Master Clock and the Processor Clock are configurable via the PMC_MCKR register.

The CSS field is used to select the clock source of the Master Clock and Processor Clock

dividers. By default, the selected clock source is slow clock.

The PRES field is used to control the Master/Processor Clock prescaler. The user can

choose between different values (1, 2, 4, 8, 16, 32, 64). Prescaler output is the selected clock

source divided by PRES parameter. By default, PRES parameter is set to 1 which means

that the input clock of the Master Clock and Processor Clock dividers is equal to slow clock.

相關(guān)PDF資料	PDF描述
MC80C52XXX-20/883	8-BIT, MROM, 20 MHz, MICROCONTROLLER, CDIP40
IC80C52CXXX-36D	8-BIT, MROM, 36 MHz, MICROCONTROLLER, CDIP40
IT80C52CXXX-L16:RD	8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44
IR80C52XXX-30SHXXX:RD	8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44
MC80C32E-36/883:D	8-BIT, 36 MHz, MICROCONTROLLER, CDIP40

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
MD80C51	制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller
MD80C51BH	制造商:ROCHESTER 制造商全稱(chēng):ROCHESTER 功能描述:CMOS SINGLE - CHIP 8-BIT MICROCOMPUTER 64K program Memory Space
MD80C51FB	制造商:Rochester Electronics LLC 功能描述:
MD80C86	制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MD80C862	制造商:Intel 功能描述:PROCESSOR:MICRO-PROCESSOR

發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

*型號(hào)	*數(shù)量	廠商	批號(hào)	封裝

采購(gòu)需求

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

我的聯(lián)系方式

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

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