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,機械和熱規(guī)格
文件頁數(shù): 122/126頁
文件大?。?/td> 1563K
代理商: PXA270
Glossary-12
Electrical, Mechanical, and Thermal Specification
Intel PXA270 Processor
Glossary
SSE2:
Streaming SIMD Extensions 2: for Intel Architecture machines, 144 new instructions, a 128-bit SIMD
integer arithmetic and 128-bit SIMD double precision floating point instructions, enabling enhanced multimedia
experiences.
SSP:
Synchronous Serial Port
SSTL:
Stub series terminated logic
Stage:
One part of the sequence composing a control transfer; stages include the Setup stage, the Data stage, and
the Status stage.
Start-of-Frame
(SOF): The first transaction in each (micro)frame. An SOF allows endpoints to identify the start of
the (micro)frame and synchronize internal endpoint clocks to the host.
Stream Pipe:
A pipe that transfers data as a stream of samples with no defined USB structure
SWI:
Software interrupt.
Synchronization Type:
A classification that characterizes an isochronous endpoint’s capability to connect to other
isochronous endpoints.
Synchronous RA:
The incoming data rate, Fsi, and the outgoing data rate, Fso, of the RA process are derived from
the same master clock. There is a fixed relation between Fsi and Fso.
Synchronous SRC:
The incoming sample rate, Fsi, and outgoing sample rate, Fso, of the SRC process are derived
from the same master clock. There is a fixed relation between Fsi and Fso.
System Programming Interface (SPI):
A defined interface to services provided by system software.
TC:
Temperature Cycling
TDD:
Time Division Duplexing The Mobile Station and the Base Station transmit on same frequency at different
times.
TDM:
See Time Division Multiplexing.
TDMA:
Time Division Multiple Access. TDMA protocol allows multiple users to access a single radio frequency
by allocating time slots for use to multiple voice or data calls. TDMA breaks down data transmissions, such as a
phone conversation, into fragments and transmits each fragment in a short burst, assigning each fragment a time
slot. With a cell phone, the caller would not detect this fragmentation. TDMA works with GSM and digital cellular
services.
TDR:
See Time Domain Reflectometer.
Termination:
Passive components attached at the end of cables to prevent signals from being reflected or echoed.
TFT:
Thin Film Twist, a type of active LCD panel.
Three-state:
a high-impedance state in which the output is floating and is electrically isolated from the buffer's
circuitry.
Time Division Multiplexing (TDM):
A method of transmitting multiple signals (data, voice, and/or video)
simultaneously over one communications medium by interleaving a piece of each signal one after another.
Time Domain Reflectometer (TDR):
An instrument capable of measuring impedance characteristics of the USB
signal lines.
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