11.1.3 Single Cycle I/O Port
The device allows direct access to PORT registers. Accesses to the AMBA®
AHB-Lite™ and the single cycle I/O interface can be made
concurrently, so the Cortex-M23 processor can fetch the next instructions while
accessing the I/Os. This enables single cycle I/O access to be sustained for as long as
necessary.
Note: The Crypto
Accelerator peripheral also benefits from this port. Refer to the 13.3 Crypto Acceleration section for more information.