Welcome to Ram Meenakshisundaram's Transputer Home Page

"…sequential computers are approaching a fundamental physical

limit on their potential power. Such a limit is the speed of light…"

Yarc ProTran PC-AT Coprocessor System

• Complete T800 transputer based parallel processing system
• 20MHz or 25Mhz versions, ZERO WAIT STATE PERFORMANCE
• Proprietary HIGH SPEED PC BUS INTERFACE; peak I/O speed exceeds 1 MB/sec
• INMOS B004 Compatible mode – runs all standard B004 software
• Proprietary pin-field array allows interconnection of links and control signals with a pre-configured header – no dangling cables to deal with
• Advanced Technology offers:
  • Up to 40  megabytes of full speed RAM on a single AT board
  • 1 to 4 transputers per board, with link adaptor
• Proprietary memory design uses innovative multibank and interleaving technologies (pioneered on YARC’s RISC products) to simultaneously achieve zero wait state performance and low cost
• Uses DOS operating system, for transparent operation
• Comprehensive software tools, including compilers, operating systems and communication protocols
• All boards tested and burnt-in at high temperatures
• Full 1 year warranty, with YARC’s unrivalled after sales support

The ProTran brings to the transputer VAR, OEM or end user a reliable platform for shipping and developing applications software.  YARC has used its coprocessor interface expertise to produce a board that is not only compatible with all B004 software, but is also able to achieve the full I/O potential of the transputer’s links onto the AT bus (over 1 megabyte per second, single link).

Each ProTran board can be equipped with 1 to 4 transputers.  The root transputer can be configured with 1, 2, 4, 8, or 16 megabytes of DRAM.  Each of the other three can be configured with 1, 2, 4, or 8 megabytes.  All configurations give zero wait state performance.  All links, event inputs and subsystem control signals are fed to a proprietary pin-field array.  A daughter board, customized to your application, is plugged over the pin-field to correctly configure each board you ship.  There is no possibility of misconnected links or of cables loosening during shipment.  Board to board interconnects are performed with a 34 pin standard ribbon cable (same cable as a floppy disk drive).  Both outputs and inputs to the cable are fully buffered.  In prototype, wire wrap may be used to interconnect the transputers.

• YARC ProTran PC-AT Coprocessor System Whitepaper

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