R5F51101ADFK Datasheet, Renesas

* 32-bit RX CPU core
* 32 MHz maximum operating frequency Capable of 50 DMIPS when operating at 32 MHz
* Accumulator handles 64-bit results (for a single inst.

CPU CPU
* Maximum operating frequency: 32 MHz
* 32-bit RX CPU
* Minimum instruction execution time: One instruction per one clock cycle
* Address space: 4-Gbyte linear
* Register set General purpose: Sixteen 32-bit registers Co.