MPC5xx

[1] The MPC5xx family of processors such as the MPC555 and MPC565 are 32-bit PowerPC embedded microprocessors that operate between 40 and 66 MHz and are frequently used in automotive applications including engine and transmission controllers.

They are generally considered microcontrollers because of their integrated peripheral set and their unusual architecture: no MMU, large on-chip SRAM and very large (as much as 1 MB) low latency access on-chip flash memories, which means their architecture is tailored to control applications.

MPC5xx – All PowerPC 5xx family processors share this common naming scheme.

The peripherals on each model vary, but frequently include analog-to-digital converters (ADC), Time Processor Units (TPU), GPIO, and UARTS/serial (QSMCM).

If most of the data can be stored in the on-chip SRAM available to the datapath of the processor in a single cycle, performance can be quite good.