MB91461
Overview
MB91461 is a line of the general-purpose 32-bit RISC microcontrollers designed for embedded control applications such as consumer devices and vehicle system, which require high-speed real-time processing. MB91461 uses the FR60 CPU compatible with the FR family* CPUs.
- FR60 CPU
- 32-bit RISC, load/store architecture, five-stage pipeline
- Maximum operating frequency : 80 MHz (oscillation frequency 20 MHz, oscillation frequency 4 multiplier (PLL clock multiplication method))
- 16-bit fixed-length instructions (basic instructions)
- Instruction execution speed : 1 instruction per cycle
- Instructions including memory-to-memory transfer, bit manipulation instructions, and barrel shift instructions: Instructions suitable for embedded applications
- Function entry/exit instructions and register data multi load store instructions: Instructions supporting C language
- Register interlock function : Facilitating assembly-language coding
- Built-in multiplier with instruction-level support Signed 32-bit multiplication : 5 cycles Signed 16-bit multiplication : 3 cycles
- Interrupt (PC/PS saving) : 6 cycles (16 priority levels) (Continued) Be sure to refer to the “Check Sheet” for the latest cautions on development. “Check Sheet” is seen at the following support page URL : “Check Sheet” lists the minimal requirement items to be checked to prevent problems beforehand in system development. Copyright©2007 FUJITSU LIMITED All rights reserved MB91460 Series
