K60P100M100SF2RM Datasheet, PDF (797/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Chapter 33 Random Number Generator (RNGB)
33.5.2 Automatic Seeding
The intended general operation of the RNGB with automatic seeding enabled is as
follows:
1. Reset/initialize.
2. Write to the RNG_CR to setup the RNGB for automatic seeding and the desired
functionality.
3. Wait for interrupt to indicate completion of first seed
4. Poll RNG_SR for FIFO level.
5. Read available random data from output FIFO.
6. Repeat steps 4 and 5 as needed. Automatic seeding occurs when necessary and is
transparent to operation.
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.
797