参数资料
型号: RTPXA270C0C312
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 312 MHz, RISC PROCESSOR, PBGA356
封装: 13 X 13 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFBGA-356
文件页数: 21/128页
文件大小: 1560K
代理商: RTPXA270C0C312
Electrical, Mechanical, and Thermal Specification
Glossary-7
Intel PXA270 Processor
Glossary
IMMU: Instruction Memory Management Unit, part of the Intel XScale core.
I-Mode: A Japanese wireless service for transferring packet-based data to handheld devices created by NTT
DoCoMo. I-Mode is based on a compact version of HTML and does not currently use WAP.
I-cache: Instruction cache
IBIS: I/O Buffer Information Specification is a behavioral description of the I/O buffers and package
characteristics of a semiconductor device. IBIS models use a standard format to make it easier to import data into
circuit simulation software packages.
iDEN: Integrated Digital Enhanced Network. A technology that allows users to access phone calls, two-way radio
transmissions, paging and data transmissions from one wireless device. iDEN was developed by Motorola and
based on TDMA.
Interrupt Request (IRQ): A hardware signal that allows a device to request attention from a host. The host
typically invokes an interrupt service routine to handle the condition that caused the request.
Interrupt Transfer: One of the four USB transfer types. Interrupt transfer characteristics are small data,
non-periodic, low-frequency, and bounded-latency. Interrupt transfers are typically used to handle service needs.
See also transfer type.
I/O Request Packet: An identifiable request by a software client to move data between itself (on the host) and an
endpoint of a device in an appropriate direction.
IrDA: Infrared Development Association
IRP: See I/O Request Packet.
IRQ: See Interrupt Request.
ISI: Inter-signal interference. Data ghosting caused when multi-path delay causes previous symbols to interfere
with the one currently being processed.
ISM: Industrial, Scientific, and Medical band. Part of the wireless spectrum that is less regulated, such as 802.11.
Isochronous Data: A stream of data whose timing is implied by its delivery rate.
Isochronous Device: An entity with isochronous endpoints, as defined in the USB Specification, that sources or
sinks sampled analog streams or synchronous data streams.
Isochronous Sink Endpoint : An endpoint that is capable of consuming an isochronous data stream that is sent by
the host.
Isochronous Source Endpoint: An endpoint that is capable of producing an isochronous data stream and sending
it to the host.
Isochronous Transfer: One of the four USB transfer types. Isochronous transfers are used when working with
isochronous data. Isochronous transfers provide periodic, continuous communication between host and device. See
also transfer type.
Jitter: A tendency toward lack of synchronization caused by mechanical or electrical changes. More specifically,
the phase shift of digital pulses over a transmission medium.
kb/s: Transmission rate expressed in kilobits per second. A measurement of bandwidth in the U.S.
相关PDF资料
PDF描述
RCPXA270C0C520 520 MHz, MICROPROCESSOR, PBGA356
RV5C387A-F 0 TIMER(S), REAL TIME CLOCK, PDSO10
RX-4571LC REAL TIME CLOCK, PDSO12
RX-4571SA REAL TIME CLOCK, PDSO14
RX-4571SA 0 TIMER(S), REAL TIME CLOCK, PDSO14
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