Snitch Frontend
===============

Proposed Flow in Snitch

+----------------------+---------------------------------------------------------------------------------+
| Instruction          | function                                                                        |
+======================+=================================================================================+
| ``DMSRC``, ``DMDST`` | setup the transfer                                                              |
+----------------------+---------------------------------------------------------------------------------+
| ``DMCPY``            | launch the transfer                                                             |
+----------------------+---------------------------------------------------------------------------------+
| ``DMSTAT``           | poll until the transfer is done or error arises                                 |
+----------------------+---------------------------------------------------------------------------------+
| ``DMERI``            | retrieve error cause and beat address (optional if error handling enabled)      |
+----------------------+---------------------------------------------------------------------------------+
| ``DMERH``            | handle the error (continue, abort, replay) (optional if error handling enabled) |
+----------------------+---------------------------------------------------------------------------------+
| ``DMSTAT``           | poll until transfer is done                                                     |
+----------------------+---------------------------------------------------------------------------------+