The Letterbox Layer-2 Driver.The functions in this file provides an abstraction from the register peek/poke methodology by implementing most common use-case provided by the sub-core. See xv_letterbox_l2.h for a detailed description of the layer-2 driver

MODIFICATION HISTORY:

Ver   Who    Date     Changes
----- ---- -------- -------------------------------------------------------
1.00  rco   07/21/15   Initial Release