Echelon I/O Model Reference for Smart Transceivers and Neuron Chips - Manual (Page 85)

I/O Model Reference 75
4
Serial I/O Models
This chapter describes serial input/output models. Serial
I/O objects are used for transferring data serially over a pin
or a set of pins. Only one type of serial I/O model can be
used within a single Neuron Chip or Smart Transceiver.
Both the input and output versions of the serial type can
coexist within a single Neuron Chip or Smart Transceiver.