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 2.00 rco 11/05/15 Integrate layer-1 with layer-2