IDT79RC32V334-100BBGI

Microprocessors Overview

The IDT79RC32V334-100BBGI is an integrated communications processor based on the RC32300 CPU core, implementing the Enhanced MIPS-II Instruction Set Architecture. It operates at frequencies up to 150 MHz and features a 32-bit architecture with an MMU supporting a 32-page TLB. The device includes an 8kB instruction cache and a 2kB data cache, both 2-way set associative. It integrates a PCI bus interface operating up to 66 MHz, a local memory/I/O controller, and a SDRAM controller supporting up to 512MB of memory. Additional peripherals include four DMA channels, dual UARTs, SPI, and programmable I/O.

Microprocessors Feature Summary

• Integrates the RISCore32300 execution core with Enhanced MIPS-II ISA for high-speed scalar pipeline processing.
• Includes a full 32-bit PCI bus bridge compliant with Revision 2.2 standards for low-cost peripheral integration.
• Features an on-chip SDRAM controller capable of direct control over discrete, SODIMM, or DIMM modules.
• Provides sophisticated on-chip DMA capabilities with scatter/gather support and unaligned transfer handling.

Microprocessors Applications

• Network routing systems
• Voice over IP compression and decompression
• Embedded communication controllers

Microprocessors Procurement Notes

Verify that the specific part number corresponds to revision Y silicon, as datasheet specifications do not apply to revision Z. Confirm the voltage requirements are met, specifically 3.3V operation with 5V tolerant I/O. Ensure the thermal management solution supports peak power consumption under 2.1 W. Check ambient temperature ratings against commercial (0°C to +70°C) or industrial (-40°C to +85°C) needs.

Microprocessors Selection Notes

Select this component when a high-performance 32-bit RISC processor with integrated PCI and SDRAM interfaces is required. It is suitable for applications needing efficient interrupt management and real-time control via cache locking. Consider the EJTAG interface for debugging if in-circuit emulation is necessary. Evaluate the available GPIO flexibility and timer/counters for system configuration requirements.

Microprocessors Part Context

This device belongs to the IDT Interprise Integrated Communications Processor family. It shares the RC32300 CPU core with other products like the RC32364. The processor is designed to leverage commodity PC market memory and I/O devices to reduce system costs while maintaining performance for intensive tasks.

Microprocessors Replacement Considerations

Consult IDT sales representatives for information regarding revision Z silicon if revision Y is unavailable. No direct public substitute part numbers are confirmed in the provided documentation.

Microprocessors FAQ

Does the datasheet apply to revision Z silicon?

No, the datasheet explicitly states it does not apply to revision Z silicon. Contact IDT sales for revision Z information.

What is the maximum frequency of the PCI bus interface?

The PCI bus interface supports operation up to 66 MHz.

How much SDRAM memory can the controller support?

The SDRAM controller supports up to 512MB of total SDRAM memory across 4 banks.