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Intel® I/O Processors

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Many storage, networking, and embedded applications require fast I/O throughput for optimal performance. Intel® I/O processors allow servers, workstations and storage subsystems to transfer data faster, reduce communication bottlenecks, and improve overall system performance by offloading I/O processing functions from the host CPU.
The table below provides a quick overview of the Intel I/O processor family. The Intel® IOP34x family of processors, with Intel XScale® microarchitecture, builds on more than a decade of leadership in I/O processor technology.




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Intel® I/O Processors
Many storage, networking, and embedded applications require fast I/O throughput for optimal performance. Intel® I/O processors allow servers, workstations and storage subsystems to transfer data faster, reduce communication bottlenecks, and improve overall system performance by offloading I/O processing functions from the host CPU.
The table below provides a quick overview of the Intel I/O processor family. The Intel® IOP34x family of processors, with Intel XScale® microarchitecture, builds on more than a decade of leadership in I/O processor technology.
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Intel® I/O Processor Product Summary
Product PCI Express* PCI Speed Core Speed SAS/SATA Ports Memory Type Max Memory Status Resources
IOP348 x8 PCIe x8 PCI-E to 133 MHz PCI-X 1.2GHz 8 533MHz 32/64-bit DDR-II SDRAM 4 GB Please inquire with your Intel Field rep. For New Designs Docs
IOP342 x8 PCIe x8 PCI-E to 133 MHz PCI-X 1.2GHz N/A 533MHz 32/64-bit DDR-II SDRAM 4 GB Active Docs
Dev Kit
(PDF 556KB)
IOP341 x8 PCIe x8 PCI-E to 133 MHz PCI-X 1.2GHz N/A 533MHz 32/64-bit DDR-II SDRAM 4 GB Active Docs
Dev Kit
(PDF 556KB)
IOP333 x8 PCIe x8 PCI-E to 133 MHz PCI-X 800 MHz N/A 333-400MHz 32/64-bit DDR SDRAM 2 GB (DDR);
1 GB (DDRII)
Not Recommended For New Designs Docs
Dev Kit
(PDF 556KB)
IOP332 x8 PCIe x8 PCI-E to 133 MHz PCI-X 800 MHz N/A 333-400MHz 32/64-bit DDR SDRAM 2 GB (DDR) Not Recommended For New Designs Docs
IOP331 133 MHz PCI-X 800 MHz N/A 333-400MHz 32/64-bit DDR SDRAM 2 GB (DDR);
1 GB (DDRII)
Not Recommended for New Designs Docs
Dev Kit
(PDF 556KB)
IOP321 133 MHz PCI-X 600 MHz N/A 200MHz DDR SDRAM 1 GB Not Recommended For New Designs Docs
Dev Kit
(PDF 556KB)
IOP315 133 MHz
PCI-X
733 MHz N/A 32/64-bit SRAM 12 GB Not Recommended For New Designs Docs
Dev Kit
(PDF 556KB)
IOP310 66 MHz 733 MHz N/A 100MHz 64-bit SDRAM 12 GB Not Recommended For New Designs Docs
Dev Kit
(PDF 556KB)
80219 133 MHz PCI-X 600 MHz N/A 200MHz DDR SDRAM 1 GB Not Recommended For New Designs Docs
Dev Kit
(PDF 556KB)

Features and Benefits
Features Benefits
Intelligent I/O Processor Offloads I/O processing functions, such as I/O interrupt processing and parity calculations, from the CPU. This allows the CPU to streamline application processing and to use other system resources, such as the system bus and memory, more effectively.
On-chip Cache Improves data throughput by reducing external bus traffic.
Parallel Transaction Capabilities Eliminates the need to use expensive proprietary controllers to handle parallel transactions and compression algorithms.
Single-chip design Provides smaller packaging, simplified design, and board space cost savings. Full system-on-a-chip validation.
Comprehensive set of development tools Faster time-to-market. A complete range of compilers, debuggers, commercial and open source operating systems are available from multiple vendors. A cross referenced list for each processor is available here.

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