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The EZ4021 extends the LSI Logic MIPS MiniRISC®family with a high
performance 64-bit microprocessor. The EZ4021 EasyMACROTM is an optimized
implementation of a synthesizeable core that operates up to 250MHz under worst
case conditions. With its 275 Dhrystone MIPS 2.1 performance, compact area,
and low power consumption rating, the EZ4021 is well prepared to meet the
embedded system designer’s growing demand for high performance 64-bit
applications.
The EZ4021 EasyMACRO physical implementation facilitates the re-use of the
core in customers’ designs. System designers do not require detailed knowledge
of the core for use in a system-on-a-chip design. Optimized for frequency and
size, the core is a highly integrated solution that is comprised of the MiniRISC
EZ4021 64-bit CPU and CPU sub-system. Specifically designed using industry-
standard, third party EDA tools (including simulation, synthesis, static timing
analysis and ATPG), the EZ4021 further enhances LSI Logic’s MIPS-based
embedded processor line. The EZ4021 EasyMACRO is designed for rapid system
on a chip ASIC integration through LSI Logic’s CoreWare®design methodology.
With an operating frequency of 250MHz, the 64-bit EZ4021 microprocessor is
ideally suited for performance driven applications such as set-top boxes,
advanced networking systems, high-end printers and office systems.
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QuickBus
EZ4021
Instruction Cache (16KB 2-way)
I-Cache Controller
Integer
Data Path
Module
CPU
Data Path
Control
Module
Bus
Interface
Unit
CPO
MMU
EJTAG
Interface
D-Cache Controller
Data Cache (16KB 2-way)
EZ4021 Block Diagram
•MIPS-III ISA Standard
•250 MHz (under worst case conditions)
•275 Dhrystone MIPS 2.1 Performance
•Harvard Cache Architecture
•Integrated 2 way set associative 16K
Instruction Cache and 16K write-back or
write-through Data Cache
•Bus Snooping enabling cache coherency
in a multi-processing environment
•Compact EasyMACRO size:12 square mm
- includes 16K Instruction and 16K Data
Caches
•Low power consumption:2.6mW/MHz
•Integrated non-intrusive EJTAG Debug
with enhanced break functions &
PC Trace
•Low-operating voltage:1.8V
•Future Options:
- Integrated FPU
- Code Compression
- Configurable Cache
- AMBA Interface
•EasyMacro:optimized for frequency and
area
•Designed for Rapid SoC integration
•Support by Industry Standard Toolchains
LSI Logic logo design, CoreWare and MiniRisc are registered
trademarks and EasyMacro is a trademark of LSI Logic
Corporation. All other brand and product names may be
trademarks of their respective companies.
LSI Logic Corporation reserves the right to make changes to
any products and services herein at any time without notice.
LSI Logic does not assume any responsibility or liability aris-
ing out of the application or use of any product or service
described herein, except as expressly agreed to in writing by
LSI Logic; nor does the purchase, lease, or use of a product or
service from LSI Logic convey a license under any patent
rights, copyrights, trademark rights, or any other of the intel-
lectual property rights of LSI Logic or of third parties.
Copyright ©2000 by LSI Logic Corporation.
All rights reserved.
For more information please call:
Europe +32.11.300.351
www.lsilogic.com
LSI Logic Corporation
North American Headquarters
Milpitas, CA
Tel: 800.574.4286
LSI Logic Europe Ltd
European Headquarters
United Kingdom
Tel: 44.1344.426544
Fax: 44.1344.481039
LSI Logic KK Headquarters
Tokyo, Japan
Tel: 81.3.5463.7821
Fax: 81.3.5463.7820
ISO 9000 Certified
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EZ4021 Description
The EZ4021 EasyMACRO is an optimized implementation of a synthesizeable
core that operates up to 250MHz, under worst case conditions. The EZ4021 core
integrates a complete CPU and CPU subsystem. The CPU implements the MIPS III
instruction set architecture (ISA). The CPU subsystem is comprised of a memory
management unit, multiply-divide unit, system-coprocessor, bus interface unit,
separate 16K instruction and 16K data caches, non- intrusive EJTAG debug module.
Both CPU and CPU subsystem are integrated into the compact 12-sq. mm
EZ4021 core.
Performance features of the EasyMACRO include MAC instruction extensions,
hardware instruction prefetch and streaming and a high-performance bus inter-
face. The memory management unit, designed for Windows®CE compliance,
includes dual 32 entry TLBs, supporting variable page sizes ranging from 4K-16M.
The Bus Interface Unit controls the on-chip system bus. Operating up to 125MHz,
the split transaction bus (32-bit address, 64 bit data), provides a glueless interface
to optional external building blocks. These CoreWare library blocks, external
to the EasyMACRO, include SDRAM controller, off-chip bus controller,
and UART.
Support Products
The EZ4021 MiniRISC MIPS core supports MIPS-III instructions and leverages
the widely available industry standard, low cost, third party tools developed in
support of the MIPS architecture. In addition, the EZ4021 leverages both mature
debug capability and third party tool chains that are supported by LSI Logic.
A complete evaluation and development kit is available for the EZ4021
EasyMACRO MIPS processor. The kit includes an EZ4021 development board,
an EJTAG probe, third party tool chain, software examples and documentation.
CoreWare Design Program
The EZ4021 MiniRISC is a member of the LSI Logic CoreWare IP library.
This CoreWare methodology provides an extensive selection of proven IP
enabling rapid system-on-a-chip design integration. The EZ4021 deliverables
include a Verilog compatible RTL model, a system verification environment
(SVE), complete netlist, timing and example script files with layout to
accelerate ASIC SoC development.
Order No. R20023
600.1K.JH.TP – Printed in USA
