Motorola DSP56303 Manuel d'utilisateur

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MOTOROLA
Semiconductor Product Sector
DSP56303
Order Number: DSP56303P/D
Rev. 1, 10/1999
© Motorola, Inc. 1999
Specifications and information herein are subject to change without notice.
PRODUCT BRIEF: 24-BIT DIGITAL SIGNAL PROCESSOR
The DSP56303 is a member of the DSP56300 core family of programmable CMOS Digital Signal
Processors (DSPs). This family uses a high-performance, single clock cycle per instruction engine
providing a twofold performance increase over Motorola's popular DSP56000 core family while
retaining code compatibility. Significant architectural features of the DSP56300 core family include a
barrel shifter, 24 bit addressing, instruction cache, and DMA. The DSP56303 performs at 66/80/100
MIPS using an internal 66/80/100MHzclockat3.0–3.6volts.TheDSP56300corefamilyoffersarich
instruction set and low power dissipation, as well as increasing levels of speed and power, enabling
wireless, telecommunications, and multimedia products.
Figure 1. DSP56303 Block Diagram
PLL
OnCE™
Clock
Generator
Internal
Data
Bus
Switch
Program RAM
4096 × 24
or
(3072 × 24 and
Instruction
Cache
1024 × 24)
YAB
XAB
PAB
YDB
XDB
PDB
GDB
MODC/
IRQC
MODB/IRQB
External
Data Bus
Switch
13
MODA/IRQA
DSP56300
616
24-Bit
24
18
X Data
RAM
2048 × 24
Y Data
RAM
2048 × 24
DDB
DAB
Memory Expansion Area
Peripheral
Core
YM_EB
XM_EB
PM_EB
PIO_EB
Expansion Area
6
SCI
Interface
JTAG
6
3
RESET
MODD/IRQD
PINIT/NMI
2
Boot-
strap
ROM
EXTAL
XTAL
ADDRESS
CONTROL
DATA
Triple
Timer
Host
Interface
HI08
ESSI
Interface
Address
Generation
Unit
Six Channel
DMA Unit
Program
Interrupt
Controller
Program
Decode
Controller
Program
Address
Generator
Data ALU
24 × 24
+
56
56-bit MAC
Two 56-bit Accumulators
56-bit Barrel Shifter
Power
Mngmnt
External
Bus
Interface
&
I - Cache
Control
External
Address
Bus
Switch
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Résumé du contenu

Page 1 - DSP56303

MOTOROLASemiconductor Product SectorDSP56303Order Number: DSP56303P/DRev. 1, 10/1999© Motorola, Inc. 1999Specifications and information herein are sub

Page 2 - DSP56303 FEATURES

2 DSP56303 Product BriefDSP56303 FeaturesDSP56303 FEATURES• High-performance DSP56300 core– 66/80/100 Million Instructions Per Second (MIPS) with a 66

Page 3 - TARGET APPLICATIONS

DSP56303 Product Brief 3Target Applications• Off-chip memory expansion– Data memory expansion to two 256 K x 24-bit word memory spaces– Program memory

Page 4 - PRODUCT DOCUMENTATION

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty,representation or guarantee rega

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