Intel® PXA27x Processor Family
Optimization Guide
Glossary-11
Sample Rate (Fs)
The number of samples per second, expressed in Hertz (Hz).
Sample Rate Conversion (SRC)
A dedicated implementation of the RA process for use on sampled analog data
streams. The error control mechanism is replaced by interpolating techniques. Service A procedure provided by a
System Programming Interface (SPI).
Satellite Phone
Phones that connect callers by satellite. Users have a world-wide alternative to terrestrial
connections. Typical use is for isolated users, such as crews of deep-see oil rigs with phones configured to connect
to a satellite service.
SAV
Start of active video
SAW
Surface Acoustic Wave filter
SDRAM
Synchronous Dynamic Random Access Memory.
Service Interval
The period between consecutive requests to a USB endpoint to send or receive data.
Service Jitter
The deviation of service delivery from its scheduled delivery time.
Service Rate
The number of services to a given endpoint per unit time.
SIMD
Single Instruction Multiple Data (a parallel processing architecture).
Smart Phone
A combination of a mobile phone and a PDA, which allow users to communicate as well as perform
tasks; such as, accessing the Internet and storing contacts in a database. Smart phones have a PDA-like screen.
SMROM
Synchronous Mask ROM
SMS
Short Messaging Service. A service through which users can send text-based messages from one device to
another. The message can be up to 160 characters and appears on the screen of the receiving device. SMS works
with GSM networks.
SOC
System On Chip
SOF
See Start-of-Frame.
SOP
Start-of-Packet.
SPI
See System Programming Interface. Also, “Serial Peripheral Interface protocol.
SPI
Serial Peripheral Interface
Split transaction
A transaction type supported by host controllers and hubs. This transaction type allows full- and
low-speed devices to be attached to hubs operating at high-speed.
Spread Spectrum
An encoding technique patented by actress Hedy Lamarr and composer George Antheil, which
broadcasts a signal over a range of frequencies.
SRAM
Static Random Access Memory.
SRC
See Sample Rate Conversion.
SSE
Streaming SIMD Extensions
Summary of Contents for PXA270
Page 1: ...Order Number 280004 001 Intel PXA27x Processor Family Optimization Guide April 2004...
Page 10: ...x Intel PXA27x Processor Family Optimization Guide Contents...
Page 20: ...1 10 Intel PXA27x Processor Family Optimization Guide Introduction...
Page 30: ...2 10 Intel PXA27x Processor Family Optimization Guide Microarchitecture Overview...
Page 48: ...3 18 Intel PXA27x Processor Family Optimization Guide System Level Optimization...
Page 114: ...5 16 Intel PXA27x Processor Family Optimization Guide High Level Language Optimization...
Page 122: ...6 8 Intel PXA27x Processor Family Optimization Guide Power Optimization...
Page 143: ...Intel PXA27x Processor Family Optimization Guide Index 5 Index...
Page 144: ......
