SWCU194 March 2023 CC1314R10 , CC1354P10 , CC1354R10 , CC2674P10 , CC2674R10
The Private Peripheral Bus (PPB) memory region provides access to internal and external processor resources. The internal PPB provides access to:
The System Control Space (SCS), including the Memory Protection Unit (MPU), Secure Attribution Unit (SAU), and the Nested Vectored Interrupt Controller (NVIC)
The Data Watchpoint and Trace (DWT)
The Breakpoint Unit (BPU), if included
The ROM table
The external PPB (EPPB) provides access to implementation-specific external areas of the PPB memory map.