dsp56800e Freescale Semiconductor, Inc, dsp56800e Datasheet - Page 692

• Manufacturer Part Number: dsp56800e
• Description: 16-bit Digital Signal Controller Core
• Manufacturer: Freescale Semiconductor, Inc

CDMA
CISC
CMOS
CODEC
COFF
COP
CPU
D/A
DAC
DMA
DRAM
DSL
C-2
Code Division Multiple Access
CDMA is a digital wireless transmission standard that is used in mobile telephones. It is a
form of spread-spectrum transmission, where the digitized voice is combined with a special
code that allows several users to share the same portion of the radio spectrum. The different
codes allow the various signals to be sorted at the receiving end. The current CDMA standard
was developed by QUALCOMM.
complex instruction set computing
An architectural design concept that is usually associated with microprocessors. CISC chips
use instructions, or commands, that combine several steps into one.
complementary metal oxide semiconductor
CMOS is the semiconductor technology that is used in the transistors that are manufactured
into most microchips. CMOS transistors use almost no power when they are not needed.
COder/DECoder
A part that is used to convert analog signals to digital (coder) and digital signals to analog
(decoder).
common object file format
A binary file format for storing compiled or assembled program data. COFF is used
extensively by Unix- and Windows-based application development systems.
computer operating properly
A term that usually refers to a timer that is similar to a watchdog timer. Under normal
operation, an application resets this timer periodically to indicate that the system is
functioning normally. If the timer is allowed to expire, it usually resets the system to
re-establish normal operation, on the assumption that something has gone wrong.
central processing unit
The (usually) single integrated circuit (IC) that does the actual interpreting of program
instructions and processing of data in a computer.
digital-to-analog
The process or characteristic of converting a digital representation of a signal into an analog
signal. See also A/D.
digital-to-analog converter
A circuit that performs a digital-to-analog conversion. See also ADC.
direct memory access
A feature that allows peripheral systems to access memory for both read and write operations
without the assistance of (and without affecting the state of) the processor.
dynamic random access memory
A type of memory component that is used to store information. “Dynamic” means the DRAM
devices need a constant “refresh” (pulse of current through all of the memory cells) to keep
the stored information.
digital subscriber line
A communications technology that provides high-speed, two-way data communications over
standard analog phone lines.
DSP56800E Core Reference Manual
Freescale Semiconductor