Nazomi offers standard Java accelerator

When Nazomi began life as Jedi Technologies in 1998, the Java-acceleration market appeared broad enough to make soft cores the preferred vehicle for bringing Java execution into larger system-on-chip designs. But with the growing popularity of Java downloadables in packet-oriented wireless services, Nazomi saw a market for standard coprocessors.

"Many of the handset OEMs wanted to stick with existing baseband designs and add features through coprocessors, rather than design a new ASIC from scratch," said Patel. "IP [intellectual property] can take one to two years to integrate into a design, so the 108 provides a solution today."

Patel cited a study from ARC Group predicting that more than 1.1 billion wireless phones will be Java-enabled by 2006. Up to 70 percent of Java virtual machines will have Java hardware coprocessors by that time, confounding early predictions that JVMs would rely only on software.

Nazomi is not halting its licensing programs, which follow two tracks. The company offers JStar cores for Internet appliances and digital phones, and JSmart cores for smart cards. It also will continue to design reference smart cards for Java applications and standalone Java software stacks, as well as maintaining a porting service for those that need assistance linking JVMs and real-time operating systems.

When implemented in a system, the JA108 will take over execution of all Java byte code. Some 169 common instructions are implemented directly in hardware, with the rest in software. For complex byte codes without direct hardware assist, the JA108 processor takes software from the original interpreter, turns each byte code into an interpreter and makes a callback to the original software.

The processor has three power modes: an executing mode dissipating 200 microamps per megahertz, a standby mode in which caches are turned off and a sleep mode in which both caches and the Java engine are disabled.

The first version of JA108 to sample is a 10 x 10-mm 128-lead micro-BGA, with 0.8 pitch. It will be followed by a smaller processor, in a 7 x 7-mm (0.5 pitch) 128-lead micro-BGA. Price in quantities of 10,000 is $5.59.