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Description
PMC-Sierra’s RM7065A is a highly integrated symmetric superscalar microprocessor capable of issuing two instructions each processor cycle. It has two high-performance 64-bit integer units as well as a high-throughput, fully pipelined 64-bit floating point unit.
Specifications and features
• Dual issue symmetric superscalar microprocessor with instruction prefetch optimized for system level price/performance
• 300, 350 MHz operating frequency
• >525 Dhrystone 2.1 MIPS @ 350 MHz
• High-performance system interface
• 1000 MB per second peak throughput
• 125 MHz max. freq., multiplexed address/data
• Supports two outstanding reads with out-of-order return
• Processor clock multipliers 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 7, 8, 9
• Integrated primary and secondary caches - 4-way set associative with 32 byte line size
• 16 KB instruction, 16 KB data, 256 KB on-chip secondary
• Per line cache locking in primaries and secondary
• Fast Packet Cache™ increases system efficiency in networking applications
• High-performance floating-point unit — 800 MFLOPS maximum
• Single cycle repeat rate for common single-precision operations and some double-precision operations
• Single cycle repeat rate for single-precision combined multiply-add operations
• Two cycle repeat rate for double-precision multiply and double-precision combined multiply-add operations
• MIPS IV superset 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 joint TLB (shared by I and D translations)
• 64/48 dual entries map 128/96 pages
• Variable page size
• Embedded application enhancements
• Specialized DSP integer Multiply-Accumulate instructions, (MAD/MADU) and three-operand multiply instruction (MUL)
• I&D Test/Break-point (Watch) registers for emulation & debug
• Performance counter for system and software tuning & debug
• Fourteen fully prioritized vectored interrupts — 10 external, 2 internal, 2 software
• Fully static CMOS design with dynamic power down logicApplication Scenarios
The RM7065A microprocessor can be used in various applications including networking systems, embedded systems, and other high-performance computing scenarios.
Comparison
Advantages- Highly integrated design with two high-performance 64-bit integer units and a pipelined 64-bit floating point unit
- Dual issue symmetric superscalar microprocessor for optimized system-level price/performance
- High-performance system interface with 1000 MB per second peak throughput
- Integrated primary and secondary caches for improved system efficiency
- Support for MIPS IV superset instruction set architecture
Disadvantages- Limited operating frequency options, only 300 and 350 MHz
- 125 MHz max. clock frequency for multiplexed address/data
- Two outstanding reads with out-of-order return, which may affect performance in certain scenarios
- Limited cache sizes with 16 KB instruction, 16 KB data, and 256 KB on-chip secondary
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download RM7065A-300T
- Chipdatas Part: CD94-RM7065A-300T
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/24 02:52 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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