dsp56800e Freescale Semiconductor, Inc, dsp56800e Datasheet - Page 696

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

QFP
RAS
RISC
SDRAM
SP
SPI
SRAM
SSI
TAP
TDMA
TQFP
WAP
Xmem
C-6
quad flat pack
A flat, rectangular package that is used to hold an integrated circuit. The electrical leads, or
pins, project from all four sides of the package. These packages are usually made of ceramic
materials; when one is made of plastic, it is called a PQFP. A TQFP is another variation.
row address strobe
The signal that tells a memory device to accept the given address as a row address. RAS is
used with CAS and a column address to select a bit within the device.
reduced instruction set computing
An architectural design concept that is usually associated with microprocessors. RISC chips
use simpler instructions, or commands, than CISC chips. They need to use more steps to
perform many functions that CISC chips perform in one step.
synchronous dynamic random access memory
A type of DRAM that is capable of delivering bursts of data at very high speeds using a
synchronous interface.
stack pointer
A register inside a processor that holds the top address of a stack data structure in memory.
serial peripheral interface
A Freescale-standard communications interface. An SPI allows full-duplex, synchronous,
serial communication between a processor and peripheral devices, including other
processors. See also SSI.
static random access memory
A memory device that is similar to DRAM, with the exception that the memory does not need
to be refreshed.
synchronous serial interface
A communications interface that is very similar to but more powerful than an SPI. For
example, an SSI can use different clocks for receiving and transmitting data. SSIs are
optimized for communication with CODECs.
test access port
An interface that is used to access the JTAG-standard boundary-scan and test unit on an
integrated circuit (typically a processor).
Time Division Multiple Access
TDMA is a digital wireless communications standard. Digitized voice communications are
sent in bursts that are timed in such a way so as not to interfere with other stations that are
using the same channel. An important variation of this system is GSM.
thin quad flat pack
See QFP.
wireless application protocol
An application environment and a set of communication protocols for wireless devices that
is designed to enable manufacturer-, vendor-, and technology-independent access to the
Internet and advanced telephony services.
data (X) memory
The memory space in which data values (not program instructions) are stored. See also
Pmem.
DSP56800E Core Reference Manual
Freescale Semiconductor