PLX TECHNOLOGY IOP 480 overview
PLX Technology IOP 480 Series PowerPC Processors The rapid spread of PCI in embedded designs has led to the creation of a new class of products, the I/O Process...
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Manufactured byPLX TECHNOLOGY
Product groupModules
DescriptionPLX Technology IOP 480 Series PowerPC Processors
OverviewThe rapid spread of PCI in embedded designs has led to the creation of a new class of products, the I/O Processor (IOP). Design requirements driving the development of the IOP include a distributed processing architecture, a high speed PCI system bus, a high performance, low cost processor, efficient memory management, flexible I/O device interface, high performance burst mode data transfers, intelligent message passing support, and efficient I/O transaction management. To meet these requirements, the new IOP 480 integrates a 66MHz, PowerPCTM core and highly flexible memory controller with PLX’s industry leading advanced Data Pipe ArchitectureTM PCI controller including dual DMA channels, programmable PCI Initiator and Target data transfer modes and PCI messaging functions. The IOP 480 is available in space saving PQFP or PBGA packages with power management and CompactPCI® Hot Swap Friendly support.The IOP 480 provides a highly flexible local bus with 8-, 16-, or 32-bit operation, at speeds up to 66MHz, and offers Fly-By DMA with burst transfers between local memory and I/O devices. To maximize flexibility in design, the 3.3V IOP 480 offers 5V tolerant signaling on both the PCI and Local bus, complies with PCI v2.2, and supports the performance enhancements in I2O v2.0. With support for both type 0 and 1 configuration cycles, and arbiters for both the PCI and Local bus, the IOP 480 is ideal for embedded host as well as adapter card designs.
Key Features• PowerPC 32-Bit RISC CPU Core with MMU, 4KB I-Cache and 2KB D-Cache• PCI v2.2 Compliant 32-Bit 33MHz Controller with Two Block Mode or Scatter/Gather DMA Channels which allow unlimited bursts up to 132Mbytes/Second• CompactPCI Hot Swap Friendly• PCI Host, Target, and Initiator Capability• PCI Bus Arbiter Supports Three External PCI Bus Masters• I2O Ready Messaging Unit with v2.0 Performance Extensions• Flexible Memory Controller directly supports up to 256 Mbytes of SDRAM/SRAM• Programmable Interrupt Controller• 32 Bit Multiplexed Local Bus up to 66MHz supports 8-, 16-, or 32-bit Peripheral and Memory Devices with unlimited bursting up to 264Mbytes/Second• Local Bus Arbiter Supports Two External Local Bus Masters• Fly-By Local to Local DMA Channel• IEEE 1149.1 JTAG Port• PCI Power Management Spec Compatible Low Power Modes: Operating, Standby, Sleep• Performance up to 80 MIPS @ 66MHz• 600mW Typical Operating Power• 3.3V, 5V tolerant signaling• 3.3V CMOS in 208-pin PQFP or 225-ball PBGA packages
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