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參數(shù)資料
| 型號： | PXA270 |
| 廠商： | Intel Corp. |
| 英文描述： | Electrical, Mechanical, and Thermal Specification |
| 中文描述： | 電氣，機(jī)械和熱規(guī)格 |
| 文件頁數(shù)： | 114/126頁 |
| 文件大?。?/td> | 1563K |
| 代理商： | PXA270 |
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Glossary-4
Electrical, Mechanical, and Thermal Specification
Intel PXA270 Processor
Glossary
Default Pipe:
The message pipe created by the USB System Software to pass control and status information
between the host and a USB device’s endpoint zero.
Device:
A logical or physical entity that performs a function. The actual entity described depends on the context of
the reference. At the lowest level, “device” may refer to a single hardware component, as in a memory device. At a
higher level, it may refer to a collection of hardware components that perform a particular function, such as a USB
interface device. At an even higher level, device may refer to the function performed by an entity attached to the
USB; for example, a data/FAX modem device. Devices may be physical, electrical, addressable, and logical. When
used as a non-specific reference, a USB device is either a hub or a function.
Device Address:
A seven-bit value representing the address of a device on the USB. The device address is the
default address (00H) when the USB device is first powered or the device is reset. Devices are assigned a unique
device address by the USB System Software.
Device Endpoint:
A uniquely addressable portion of a USB device that is the source or sink of information in a
communication flow between the host and device. See also
endpoint address
.
Device Resources:
Resources provided by USB devices, such as buffer space and endpoints. See also
Host
Resources and Universal Serial Bus Resources
.
Device Software:
Software that is responsible for using a USB device. This software may or may not also be
responsible for configuring the device for use.
DMA
: Direct Memory Access
Downstream:
The direction of data flow from the host or away from the host. A downstream port is the port on a
hub electrically farthest from the host that generates downstream data traffic from the hub. Downstream ports
receive upstream data traffic.
DQPSK
: Differential Quadrature Phase Shift Keying a modulation technique used in TDMA.
Driver:
When referring to hardware, an I/O pad that drives an external load. When referring to software, a program
responsible for interfacing to a hardware device, that is, a device driver.
DSP
: Digital Signal Processing
DSTN
Passive LCD Panel.
Dual band mobile phone:
A phone that supports both analog and digital technologies by picking up analog signals
when digital signals fade. Most mobile phones are not dual-band.
DWORD:
Double word. A data element that is two words (i.e., four bytes or 32 bits) in size.
Dynamic Insertion and Removal:
The ability to attach and remove devices while the host is in operation.
E2PROM
: See Electrically Erasable Programmable Read Only Memory.
EAV:
End of active video
EDGE:
Enhanced Data GSM Environment. A faster version of the GSM standard. It is faster because it can carry
messages using broadband networks that employ more bandwidth than standard GSM networks.
EEPROM:
See Electrically Erasable Programmable Read Only Memory.
Electrically Erasable Programmable Read Only Memory (EEPROM):
Non-volatile re-writable memory
storage technology.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PXA300 | 制造商:Marvell 功能描述: |
| PXA310 | 制造商:MARVELL 制造商全稱:MARVELL 功能描述:Rich Multimedia with Scalable Performance up to 624 MHz for Cost-Effective and Power-Effi cient Secure 3.5G Smartphones |
| PXA320 | 制造商:MARVELL 制造商全稱:MARVELL 功能描述:Cost-Effective, Scalable Performance up to 806 MHz for Power-Efficient, High-End Multimedia Handsets, Embedded Solutions, and Enterprise-Class Devices |
| PXA6.3VC101MF60TP | 功能描述:鋁有機(jī)聚合物電容器 100UF 6.3V SMT CAN RoHS:否 制造商:Panasonic Electronic Components 電容:470 uF 容差:20 % 電壓額定值:2.5 V ESR:4.5 mOhms 工作溫度范圍:- 40 C to + 105 C 端接類型:SMD/SMT 外殼直徑: 外殼長度:7.3 mm 外殼寬度:4.3 mm 外殼高度:1.9 mm 封裝:Reel |
| PXA6.3VC471MH12TP | 制造商:United Chemi-Con Inc 功能描述:Cap Aluminum 470uF 6.3V 20% (8 X 12mm) SMD 0.012 Ohm 4770mA 2000 hr 105°C T/R |
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