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دیتاشیت - Freescale Semiconductor - 24-Bit Digital Signal Processor

شماره قطعه DSP56321
شرح مفصل 24-Bit Digital Signal Processor
تولید کننده Freescale Semiconductor 
آرم Freescale Semiconductor 


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DSP56321 شرح
Freescale Semiconductor
Technical Data
DSP56321
Rev. 11, 2/2005
DSP56321
24-Bit Digital Signal Processor
3 16 6 6
Memory Expansion Area
SCI
Triple
Timer
Address
Generation
Unit
Six Channel
DMA Unit
Bootstrap
ROM
Internal
Data
Bus
Switch
Clock
Generator
PLL
EXTAL
XTAL
RESET
PINIT/NMI
HI08
ESSI
EFCOP
Peripheral
Expansion Area
Program
RAM
32 K × 24 bits
or
31 K × 24 bits
and
Instruction
Cache
1024 × 24 bits
X Data
RAM
80 K × 24 bits
Y Data
RAM
80 K × 24 bits
YAB
XAB
PAB
DAB
External
Address
Bus
Switch
18
Address
24-Bit
DSP56300
Core
DDB
YDB
XDB
PDB
GDB
External
Bus
Interface
and
I - Cache
Control
10
Control
External
Data
Bus
Switch
24
Data
Program
Interrupt
Controller
Program
Decode
Controller
MODA/IRQA
MODB/IRQB
MODC/IRQC
MODD/IRQD
Program
Address
Generator
Power
Management
Data ALU
24 × 24 + 56 56-bit MAC
Two 56-bit Accumulators
JTAG
56-bit Barrel Shifter
OnCE™
5
DE
Figure 1. DSP56321 Block Diagram
The DSP56321 is intended
for applications requiring a
large amount of internal
memory, such as networking
and wireless infrastructure
applications. The onboard
EFCOP can accelerate
general filtering applications,
such as echo-cancellation
applications, correlation, and
general-purpose convolution-
based algorithms.
What’s New?
Rev. 11 includes the following
changes:
Adds lead-free packaging and
part numbers.
The Freescale DSP56321, a member of the DSP56300 DSP family, supports networking, security encryption, and
home entertainment using a high-performance, single-clock-cycle-per- instruction engine (DSP56000 code-
compatible), a barrel shifter, 24-bit addressing, an instruction cache, and a direct memory access (DMA) controller
(see Figure 1).
The DSP56321 offers 275 million multiply- accumulates per second (MMACS) performance, attaining 550
MMACS when the EFCOP is in use. It operates with an internal 275 MHz clock with a 1.6 volt core and
independent 3.3 volt input/output (I/O) power. By operating in parallel with the core, the EFCOP provides overall
enhanced performance and signal quality with no impact on channel throughput or total channel support. This
device is pin-compatible with the Freescale DSP56303, DSP56L307, DSP56309, and DSP56311.
© Freescale Semiconductor, Inc., 2001, 2005. All rights reserved.

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