33User’s Manual U16580EE3V1UD00Chapter 1 IntroductionThe V850E/PH2 (PHOENIX-FNote) is a product of the NEC Electronics single-chip microcontrollers“V850 series™”. This chapter gives a short outline of the V850E/PH2 microcontroller.1.1 OutlineThe V850E/PH2 is a 32-bit single-chip microcontroller that realizes high-precision inverter control of amotor due to high-speed operation. It uses the V850E1 CPU (NU85EFC) of the V850 Series includingsingle-precision floating point unit, and has on-chip ROM, RAM, bus interface, DMA controller, a real-time pulse unit including 3-phase PWM timer for inverter control, various serial interfaces includingAFCAN, and peripheral facilities such as A/D converters, as well as an on-chip debug interface.(1) V850E1 CPUThe V850E1 CPU (NU85EFC) supports a RISC instruction set that enhances the performance ofthe V850 CPU, which is the CPU core integrated in the V850 Series, and has added instructionssupporting high-level languages, such as C-language switch statement processing, table look-upbranching, stack frame creation/deletion, and data conversion. This enhances the performance ofboth data processing and control. It is possible to use the software resources of the V850 CPUintegrated system since the instruction codes of the V850E1 are upwardly compatible at the objectcode level with those of the V850 CPU.In addition, the V850E1 CPU (NU85EFC) incorporates a single-precision floating point unit, whichsupports high speed floating point arithmetic operations.(2) External memory interface functionThe V850E/PH2 microcontroller features n on-chip external memory interface including separatelyconfigured address (22 bits) and data (32 bits) buses. SRAM and ROM can be connected.(3) On-chip flash memoryThe V850E/PH2 microcontroller has a quickly accessible flash memory on-chip, that can shortensystem development time since it is possible to rewrite a program with the V850E/PH2microcontroller mounted in an application system. Moreover, it can greatly improve maintain abilityafter system ships.(4) A full range of development environment productsA development environment system that includes an optimized C compiler, debugger, in-circuitemulator, simulator, system performance analyser, and other elements is also available.Note: PHOENIX-F is the European name of the V850E/PH2 microcontroller.
