Allan Tzeng

The first MAJC microprocessor: a dual CPU system-on-a-chip

The first implementation of MAJC architecture achieves high performance by using very long instruction word (VLIW), single instruction multiple data (SIMD), and chip multiprocessing. The chip integrates two processors, a memory controller, two high-speed parallel I/O interfaces, and a PCI controller. The chip, fabricated in a 0.22-/spl mu/m CMOS process with six layers of copper interconnect, contains 13 million transistors and operates at 500 MHz. It is packaged in a 624-pin ceramic column grid array using flip-chip assembly technology.

First-generation MAJC dual microprocessor

The MAJC 5200 is a dual 32b microprocessor system-on-a-chip, utilizing 0.22 /spl mu/m CMOS with all-Cu interconnect. Two CPUs, delivering GGFLOPS and 13GOPS at 500 MHz, are tightly coupled through a shared, coherent, 4-way set associative 16 KB data cache, and an on-chip 4 GB/s switch. Each CPU is a 4-issue VLIW engine.