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 RM7000A
64-Bit MIPS RISC Microprocessor with Integrated L2 Cache
FEATURES
* Dual-Issue symmetric superscalar microprocessor * 400MHz max CPU frequency * Capable of issuing two instructions per clock cycle * Integrated primary and secondary caches * 16KB Instruction, 16KB Data, and 256KB on-chip secondary * All are 4-way set associative with 32-byte line size * Per-line locking in primary and secondary caches * Fast Packet CacheTM increases system efficiency in networking applications * Integrated external cache controller * Allows up to 8Mbyte of external * cache for applications with large * data sets * High-performance system interface * 1000 Mbyte per-second peak throughput 125 MHz max. freq., multiplexed address/data bus (SysAD) * Supports two outstanding reads with out-of-order return High-performance floating-point unit * 800 MFLOPS maximum * IEEE754 compliant single and double precision floating-point operations 64-bit MIPS instruction set architecture * Data PREFETCH instruction allows the processor to overlap cache miss latency and instruction execution * Single-cycle floating-point multiplyadd Integrated memory management unit * Fully associative TLB * 64/48 dual entries map 128/96 pages * Variable page size Embedded application enhancements * Fourteen fully prioritized vectored interrupts-10 external, 2 internal, 2 software
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Specialized DSP integer MultiplyAccumulate instructions (MAD/MADU), and three-operand Multiply instruction (MUL) I and D Test/Break-point (Watch) registers for emulation and debug Performance counter for system and software tuning and debug
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PACKAGING
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Fully Static 0.18 CMOS design with dynamic power down logic 304 pin TBGA package, 31x31 mm
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DEVELOPMENT TOOLS
* Operating Systems: * Linux by MontaVista and Red Hat * VxWorks by Wind River Systems * Nucleus by Accelerated Technology * Neutrino by QNX Software Systems * Compiler Suites * Algorithmics * Green Hills Software
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BLOCK DIAGRAM
64-bit Integer Unit
Dual-Issue Superscalar
Integer Multiplier
System Control
PC Unit
64-bit FP Unit
Double/Single IEEE754
Instr. Dispatch
I-Cache
16KB, 4-way, lockable
MMU
Fully Assoc., 48 or 64 Entry
D-Cache
16KB, 4-way, lockable
Bus Interface Unit Int Ctlr
System Cache (L2)
256KB, 4-way, lockable
SysA /D Bus
NMI, INT9 - INT0
PMC- 2010739(R2)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE
(c) Copyright PMC-Sierra, Inc. 2001
RM7000A
64-Bit MIPS RISC Microprocessor with Integrated L2 Cache
* Red Hat * Evaluation Boards and Companion Chips * Galileo Technology * EV-64120A-7000: 32/64-bit, * 33/66MHz PCI * EV-64240-7000: 32/64-bit, * 33/66MHz PCI * Momentum Computer * Ocelot: 6U RM7000 Compact PCI * Single Board Computer *
Logic Analyzers and Emulation * HP * Tektronix * Corelis * Crescent Heart Software
APPLICATIONS
* * * * * * * * * * * Voice Gateways Multi-Service Access Platforms DSLAMs/Access Concentrators Remote Access Switches Web Switches Layer 3 Switches Backbone Switches/Routers RAIDs Set Top Boxes Networked Printers Cellular Base Stations
TYPICAL APPLICATION
RM7000A
64-Bit 100MHz 64-Bit 100MHz
L3 Cache
Marvell/Galileo GT-64120A
SDRAM
PCI Bus 32/64-bit @ 33MHz 64bit PCI-to-PCI Bridge 32bit Ethernet MAC 32bit
64bit
Data Buffer 8-bit Boot-Flash Flash Disk Watchdog, I2C & Control Registers
Ethernet MAC
Dual UART
Head Office: PMC-Sierra, Inc. 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200
To order documentation, send email to: document@pmc-sierra.com or contact the head office, Attn: Document Coordinator
All product documentation is available on our web site at: http://www.pmc-sierra.com For corporate information, send email to: info@pmc-sierra.com
PMC- 2010739(R2) (c) Copyright PMC-Sierra, Inc. 2001. All rights reserved. RM7000A is a trademark of PMC-Sierra Inc.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE


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