Reference Board Supports 64-Bit RISC Processor

Primed for the TX4939XBG-400 64-bit, 400-MHz MIPS-based RISC processor, the RBTX4939 reference board complies with ATX specifications and includes most of the interfaces supported by the device. The board consists of two modules: a CPU module and a baseboard. The CPU module includes the microprocessor, DDR SDRAM, and an EJTAG interface while the baseboard provides the PCI slots, ATA sockets, Ethernet PHY (RMII), and audio/video interface socket. CPU-module features include 256 MB of DDR SDRAM, a DIP switch for boot configuration, reset, clock, and a real-time clock circuit for the microprocessor. The baseboard includes two 10/100 Ethernet MACs, ATA/IDE interfaces, AC-link and I2S audio interfaces, and a USB 2.0 host chip. Additionally, it includes NOR flash ROM, four RS-232C interfaces, a 100 Base-TX Ethernet controller, ROM emulator connector, two ISA slots, and a power supply circuit. Engineering samples are available now with production slated for October. Pricing is $3,000 each. TOSHIBA AMERICA ELECTRONIC COMPONENTS INC., Irvine, CA. (949) 623-2900.