VME-CAN2 addresses
==================

Note that the following text only shows the *default* configuration of the
VME-CAN2 cards. If you use ``vcanDrvp`` or ``vcanDrvpar`` instead of
``vcanDrv`` to initialize the driver you can change the start of the address
ranges and interrupt ranges.

Card numbers
------------

There are 4 possible card configurations, named 0 to 3 in this document. In
a VME system each card *must have* a different configuration. 

Interrupts
----------

The VME-CAN2 card uses VME interrupt level 2. Here are the used interrupts:

=============   ===============
configuration   interrupts used
=============   ===============
     0             112-115
     1             116-119
     2             120-123
     3             124-127
=============   ===============

VME Addresses
-------------

Depending on the configuration a card occupies different areas in VME
address space. All ranges are in VME-A24 address space:

=============   ================================
configuration   VME addresses used (hexadecimal)
=============   ================================
     0               C00000 - C7FFFF
     1               C80000 - CFFFFF
     2               D00000 - D7FFFF
     3               D80000 - DFFFFF
=============   ================================