MB91302A
Overview
The MB91301 series are a line of microcontrollers based on a 32-bit RISC CPU core (FR family) , incorporating a variety of I/O resources and a bus control mechanism for embedded control that requires the processing of a high-performance, fast CPU as well as an SDRAM interface that can connect SDRAM directly to the chip. The large address space supported by the 32-bit CPU addressing means that operation is primarily based on external bus access although instruction cache memory of 4 Kbytes and RAM of 4 Kbytes( for data) are included for high-speed execution of CPU instructions.
- PACKAGES 144-pin, Plastic LQFP 179-pin, Ceramic PGA (FPT-144P-M12) (PGA-179C-A03) MB91301 Series
- FR CPU
- 32-bit RISC, load/store architecture, 5-stage pipeline
- 68 MHz internal operating frequency (Max) [external (Max) 68 MHz] (when using PLL with base frequency (Max) = 17 MHz)
- General purpose registers : 32 bits×16
- 16-bit fixed length instructions (basic instructions) , 1 instruction per cycle
- Instruction set optimized for embedded applications: Memory-to-memory transfer, bit manipulation, barrel shift etc.
- Instructions adapted for high-level languages : Function entry/exit instructions, multiple-register load/store instructions
- Easier assembler coding : R
