The OOBFC implements the protocol as described in the Interlaken Protocol Definition, Revision 1.2, October 7, 2008.
There are three line signals: clock, data, and
sync. Data is double rate (transfers on the rising and falling
edges of the clock). The maximum clock frequency is 100 MHz.
Each bit can represent ON/OFF for one channel or any other mapping you select. A 4-bit CRC is added for every 64 data bits.
The following figure shows the relative timing between the signals.
Figure 1. OOBFC Signals
The following sections describe the operation in more detail and are intended to augment the Interlaken specification.