BiSS & SSI Master / Slave

Introductions

Synchronous Serial Interface (SSI) is serial interface standard used mostly in industrial applications, two units defined – Master and Slave.

Bi-Directional Synchronous Serial Interface (BiSS) supersedes the SSI protocol and compatible with the SSI, BiSS enable bi-directional communication which enables implementation of internal registers in the slave unit. BiSS support higher fan-out, higher bandwidth and longer lines on the bus. SSI and BiSS use RS422 physical interface,

Spring Electronics SSI & BiSS IP Core support variety of applications, Slave and Master units, Multi master and multi slave option, Back to Back – Master Slave and more.

Features

  • User control
    • Enable Channel
    • Data field order and length
    • Enable address filed and Address Filed length
    • Direction filed
    • Transmission order
    • Clock polarity control for turnaround cycle
    • SSI Bus mode control
    • Sampling and clocked out data control, rising and falling clock.
    • Direction Polarity control
    • Enable Polarity
  • Status Register (buffer full, overflow, underflow, Done bit, Busy)
  • Clock frequency control
  • Activity LED
  • Interrupt Control for each of the status bits (Interrupt trigger – Buffer full, overflow, underflow, done and busy)
  • Interrupt Status register for each of the status bits (Interrupt trigger – Buffer full, overflow, underflow, done and busy)
  • Automatic configuration option – on power up or on Int/Ext command, master unit will configure all slave units automatically and only then will move to operation mode

Master and Slave units

 

 

 

 

SSI BiSS System