dsp56800e Freescale Semiconductor, Inc, dsp56800e Datasheet - Page 693

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

DSC
EEPROM
Enhanced On-Chip Emulation (Enhanced OnCE™)
EPROM
FIFO
Flash memory
GPIO
GSM
GUI
IC
ICE
iDEN
Freescale Semiconductor
digital signal controller
Digital signal processing is the manipulation of analog information—such as sound,
photographic images, or transmitted signals—that has been converted into a digital form. A
digital signal controller, which is similar to a CPU, is a semiconductor device that is
optimized for the mathematics that is performed in digital signal processing.
electrically erasable PROM
An EEPROM is similar to an EPROM, but it can be erased by applying an erase current to
the device, rather than by exposing it to ultraviolet light.
The Enhanced OnCE port is a Freescale-designed module that is used to debug application
software that is used with the chip. The port is a separate on-chip block that allows
non-intrusive interaction with the DSC and is accessible through the pins of the JTAG
interface. The Enhanced OnCE port makes it possible to examine the contents of registers,
memory, or on-chip peripherals in a special debug environment. No user-accessible resources
need to be sacrificed to perform debugging operations.
erasable PROM
A programmable, read-only memory device that can be erased by being exposed to ultraviolet
light. EPROM devices maintain their contents even when electrical power is lost.
first in, first out
A data structure or device in which data items are removed in the order in which they are
added. The most common first-in-first-out data structure is called a queue. See also LIFO.
A type of non-volatile memory that retains data when power is removed. Flash memory
devices are similar to EPROMs, with the exception that flash memory devices can be
electrically erased (EPROMs must be exposed to ultraviolet light to be erased).
general-purpose input/output
An input/output interface that is not dedicated to any particular task, but that can be used to
transmit or receive data from a variety of other devices.
Global System for Mobile Communications (previously Groupe Spécial Mobile)
A TDMA communications system that also has frequency-hopping and encryption features.
While TDMA is primarily a North American standard, GSM, which originated in Europe, is
rapidly being deployed worldwide.
graphical user interface
A program interface that takes advantage of a computer's graphics capabilities to make the
program easier to use.
integrated circuit
Another name for a computer chip. An IC is a small electronic device that is made of a
semiconductor material.
in-circuit emulator
A device that emulates a computer chip (typically a microprocessor) that can be used in place
of a real chip in a computer to assist in testing and debugging.
Integrated Dispatch Enhanced Network
A standard for wireless communications that was developed by Freescale, iDEN is based on
the TDMA standard. It enhances TDMA by adding special modulation and encoding
Glossary
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