无码人妻一区二区三区免费n鬼沢,99热99这里只有高清国产,亚洲乱码精品不卡

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45382 > MQ83C154XXX-12P883 (ATMEL CORP) 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44 PDF資料下載

型號(hào)：	MQ83C154XXX-12P883
廠商：	ATMEL CORP
元件分類(lèi)：	微控制器/微處理器
英文描述：	8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44
封裝：	CERAMIC, QFP-44
文件頁(yè)數(shù)：	680/832頁(yè)
文件大小：	12467K
代理商：	MQ83C154XXX-12P883

6384E–ATARM–05-Feb-10

AT91SAM9G20

Access to the HC communication area

Write status and retire transfer Descriptor

Memory access errors (abort, misalignment) lead to an “Unrecoverable Error” indicated by the

corresponding flag in the host controller operational registers.

The USB root hub is integrated in the USB host. Several USB downstream ports are available.

The number of downstream ports can be determined by the software driver reading the root

hub’s operational registers. Device connection is automatically detected by the USB host port

USB physical transceivers are integrated in the product and driven by the root hub’s ports.

Over current protection on ports can be activated by the USB host controller. Atmel’s standard

product does not dedicate pads to external over current protection.

Product Dependencies

I/O Lines

DPs and DMs are not controlled by any PIO controllers. The embedded USB physical transceiv-

ers are controlled by the USB host controller.

Power Management

The USB host controller requires a 48 MHz clock. This clock must be generated by a PLL with a

correct accuracy of ± 0.25%.

Thus the USB device peripheral receives two clocks from the Power Management Controller

(PMC): the master clock MCK used to drive the peripheral user interface (MCK domain) and the

UHPCLK 48 MHz clock used to interface with the bus USB signals (Recovered 12 MHz domain).

Interrupt

The USB host interface has an interrupt line connected to the Advanced Interrupt Controller

Handling USB host interrupts requires programming the AIC before configuring the UHP.

Functional Description

Please refer to the Open Host Controller Interface Specification for USB Release 1.0.a.

Host Controller Interface

There are two communication channels between the Host Controller and the Host Controller

Driver. The first channel uses a set of operational registers located on the USB Host Controller.

The Host Controller is the target for all communications on this channel. The operational regis-

ters contain control, status and list pointer registers. They are mapped in the memory mapped

area. Within the operational register set there is a pointer to a location in the processor address

space named the Host Controller Communication Area (HCCA). The HCCA is the second com-

munication channel. The host controller is the master for all communication on this channel. The

HCCA contains the head pointers to the interrupt Endpoint Descriptor lists, the head pointer to

the done queue and status information associated with start-of-frame processing.

The basic building blocks for communication across the interface are Endpoint Descriptors (ED,

4 double words) and Transfer Descriptors (TD, 4 or 8 double words). The host controller assigns

相關(guān)PDF資料	PDF描述
MQHSMCJ5550	5 A, SILICON, RECTIFIER DIODE, DO-214AB
MQHSMCJ5551	5 A, SILICON, RECTIFIER DIODE, DO-214AB
MQHSMCJ5552	5 A, SILICON, RECTIFIER DIODE, DO-214AB
MVHSMCJ5552	5 A, SILICON, RECTIFIER DIODE, DO-214AB
MVHSMCJ5554	5 A, SILICON, RECTIFIER DIODE, DO-214AB

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
MQ86	制造商:TE Connectivity 功能描述:
MQ8797BH	制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Intel 功能描述:
MQ87C196KC/R	制造商:Rochester Electronics LLC 功能描述:
MQ87C196KD-16/B	制造商:Rochester Electronics LLC 功能描述:
MQ87C196KD-20/R	制造商:Rochester Electronics LLC 功能描述:

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)