PM7000

Featuring the highest performance embedded MIPS processor available today, the PM7000 module includes a QED (PMC-Sierra) RM7000A 64-bit floating-point microprocessor and 64MB of SDRAM. This RISC processor initializes the PHY and SAR of the IMATM, manages the flow of ATM traffic and handles exception conditions on our V6M6 or V6M6 Hot-swap base boards and our 6U Compact PCI C6M6 base board.

PM7000 smPCI Module

The RM7000A processor can execute two instructions per clock, so the currently available 350MHz devices yield a peak instruction rate of 700 MIPS. It includes 16KB primary instruction and data caches, plus a 256KB internal secondary cache.

The RM7000A processor is a 64-bit floating-point microprocessor. The chip features:

• pipelined floating-point ALU
• separate integer and floating-point ALUs eliminates dependent latencies
• floating-point multiply-add/subtract instructions
• low-latency multiply-add and conditional move instructions
• single cycle repeat instruction
• two-way set associative cache increases hit rate

Details on the RM7000A can be found on PMC-Sierra web site www.pmc-sierra.com

In addition to the 64MB of on-board local DRAM,the 64MB of local SDRAM includes a robust error detection capability. It is capable of detecting all single- and double-bit errors in a 32-byte cache line. When enabled, this error detection mode consumes 4MB of the 64MB, leaving 60MB for user applications.

The module is a PCI bus master and target. This makes the module’s memory available to other PCI masters, as well as enabling the RM7000A processor to reach any PCI-accessible memory on the baseboard or on other modules. The PCI master logic includes a DMA controller to support memory-to-memory copies with low CPU overhead. The module comes with a connector to the processor's RS232 port for debugging purposes.

In addition to the 64MB of on-board local SDRAM, the PM7000 module provides a PCI bus master enabling it to access the carrier board's global memory as well as other modules. Inter-module isochronous communications are accomplished via the four TDM buses.

Specifications

Product Brochure
in PDF format.

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