SMCS332SpW / SMCS116SpW SpaceWire compliant Communication Controller ASICs

1. SMCS332SpW / SMCS116SpWSpaceWire compliant Communication Controller ASICs Stephan Fischer, Lars Stopfkuchen, Uwe Liebstückel, Paul Rastetter, Luca Tunesi2 EADS Astrium GmbH Munich, 2ESA / ESTEC • Applications: • Typical Environment : SMCS332SpW and SMCS116SpW within a point-to-point SpaceWire network • Motivation for Upgrading SMCS332 and SMCS116: • Existing SMCS332 and SMCS116 are often used, but not compliant to SpaceWire standard (ECSS-E-50-12A) • Anomalies shall be corrected • Need for protocol due to upcoming SpaceWire Networks with Routers • Advantages due to SpaceWire: • Resistance against simultaneous switching on the data and strobe inputs • ‘Hot’ pluggable, i.e. no Master-Slave situation has to be arranged • Time distribution possible • simple interface (approx. 5000 Gates) • high-speed (a few to hundreds of MBit/s) • Features of SMCS116SpW: • 1 SpaceWire link from 1.25 up to 200 MBit/s (100 MBit/s with 3 V supply) • supports Serial Transfer Universal Protocol (STUP) • Host Interface to program and control the SMCS116SpW • FIFO Interface configurable between 8 and 16 bit mode • ADC Interface allows to connect an ADC with a width of up to 16 bits • DAC Interface • Features of SMCS332SpW: • 3 SpaceWire links allowing full duplex communication with selectable bitrate from 1.25 up to 200 MBit/s (100 MBit/s with 3 V supply) • Communication Memory Interface (COMI) provides autonomous access to a communication memory. • 8/16/32-Bit Little or Big Endian mode is configurable • Host Control Interface gives read/write access to the configuration registers • Control-by-Link • Wormhole routing allows hardware routing of packets • RAM Interface provides a 8/16-bit data bus and a 16-bit address bus • 2 UART Interfaces • up to 24 GPIO • Two 32-bit on-chip timer • Enhanced 32-bit processor support • SEU FREE • SMCS332SpW as communicationinterface for a processor • New header field control bit that gives more flexibility for packet generation • Arbitrary packet length • No packet size restriction for data over COMI • SEU FREE • SMCS116SpW as communication controller for a memory • Implementation of SMCS332SpW • SEU free cell library (0,5 µm) from ATMEL • 196 pins ceramic quad flat pack (MQFP) • Power Consumption: 1,7 W (max) • Serial Transfer Universal Protocol (STUP): • implemented in SMCS116SpW • minimized complexity • makes it possible to use SMCS116SpW within a SpaceWire Network with distinct protocols • Implementation of SMCS116SpW • SEU free cell library (0,5 µm) from ATMEL • 100 pins ceramic quad flat pack (MQFP) • Power Consumption: 0,7 W (max) • leading path addresses are stripped off on the way through the network • Protocol Identifier follows the logical address, unknown protocol ID’s are ignored • for SMCS116SpW: first data byte is interpreted as command (read/write) in conjunction with 7- Bit SMCS116SpW register address • Checksum over data bytes is optional MAPLD 2005/182 -- Stopfkuchen