MB91301
Description
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.
Key Features
- The MB91301 series is a line of ICs with various programs embedded in internal ROM
- 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)
- 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 : Register interlock function
- Branch instructions with delay slots : Reduced overhead time in branch executions
- Built-in multiplier with instruction-level support Signed 32-bit multiplication : 5 cycles Signed 16-bit multiplication : 3 cycles
- Interrupt (PC, PS save) : 6 cycles, 16 priority levels
