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Intel® IOP331 I/O Processor with Intel XScale® Technology: BriefUp to 800 MHz CPU, Integrated PCI-X Bridge and Dual-Ported High-Bandwidth Memory Controller Deliver Superior PerformanceProduct Highlights• 32-bit high-performance CPU (500, 667, 800 MHz) based upon Intel XScale® microarchitecture• Integrated 133 MHz/64-bit PCI-X* to PCI-X Bridge (PCI 1.0A, PCI 2.3, PCI Bridge 1.1 compliant, scalability/flexibility on both PCI-X buses, four secondary devices supported by integrated clockouts and arbiter, private device and private memory support)• DDR 333 and DDRII 400 SDRAM with ECC (up to 2 GB of 32- or 64-bit memory, optional single-bit error correction/multi-bit detection support)• Dual-ported memory controller with pipelined access from Intel XScale microarchitecture and internal peripherals (programmable control for preemption by Intel XScale microarchitecture and multitransaction counter for performance tuning)• RAID5 XOR and iSCSI CRC32C off-load engines• 8 or 16-bit, 66 MHz Peripheral Bus Interface (programmable bus width and wait states for two memory windows, two chip selects)• 266 MHz, 64-bit (2.1 GB/sec) internal bus• 2-channel DMA engine with support for scatter and gather of data blocks, automatic data chaining, and unaligned data transfers between PCI-to-local memory, local memory-to-PCI and memory-to-memory (three 1 Kbyte data buffers per channel)Read the full Intel® IOP331 I/O Processor with Intel XScale® Technology Product Brief.
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