This is a special inmem created to test the inmem
playback during simulation calibrations & bypass
the data getting stuck in the formatters during
the 1st event.

The 1st event in the inmem (A -- B is empty) is a
null event which the MDSP will send into ZenLand
by setting an un-trapped ROD event type for it.

The following events are 4 nmask events (128 chan
per chip) on links 0x00 & 01, 04 & 05, 08 & 09 and
10 & 11.