RM7000C Datasheet PDF - PMC-Sierra

FEATURES
• Dual-Issue symmetric superscalar microprocessor
   • 600MHz 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 Cache™ increases system efficiency in networking applications
• Integrated external cache controller
   • Allows up to 64Mbyte of external cache for applications with large data sets
   • Enhanced protocol eliminates requirement for TAG RAMS
• High-performance system interface
   • 1600 Mbyte per-second peak throughput
   • 200 MHz max. freq., HSTL multiplexed address/data bus (SysAD200)
   • Supports two outstanding reads with out-of-order return
• High-performance floating-point unit
   • 1200 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 multiply add
• 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
   • Specialized DSP integer Multiply Accumulate 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
  
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