64bit RISC microprocessor takes PCI onboard

The new TMPR4937XBG-300 microprocessor from Toshiba delivers almost 1.5 times better performance than the previous generation 200MHz model.

The new TMPR4937XBG-300 microprocessor from Toshiba is based on a TX49/H3 core, which is fabricated with 0.13-micron process technology and operates at 300MHz, delivering almost 1.5 times better performance than the previous generation 200MHz model.

The TMPR4937XBG-300 integrates a comprehensive array of interface controllers.

These include a PCI controller and direct memory access (DMA) controller, supporting requirements for simple, small system design and high processing speed in digital electronic applications such as digital televisions and network printers.

In addition, the microprocessor's design incorporates a large capacity four-way set-associative cache memory capacity of 32Kbyte for instructions and 32Kbyte for data.

This memory supports efficient processing for higher speed performance by realising a higher hit ratio.

Designed as a single-chip, high-performance solution, the TMPR4937XBG-300 incorporates an SDRAM controller, UART, timer and an interrupt controller.

A debug support unit (DSU) supports real-time data analysis by setting break points in system operation to check the flow of the user program and the value of each register.

The TMPR4937XBG-300 is pin-compatible with Toshiba's previous TMPR4927ATB model, allowing current users to develop higher performance applications on the same circuit platform.

Samples of the new microprocessor are available now and mass production will start in February 2003 at 100,000 units a month.

The introduction of a reference board for testing will follow the sample chip shipment.

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