DATA SHEET MOS INTEGRATED CIRCUIT µPD30121 VR4121 64-/32-BIT MICROPROCESSOR TM The µPD30121 (VR4121) is one of NEC’s VR SeriesTM RISC (Reduced Instruction Set Computer) microprocessors and is a high-performance 64-/32-bit microprocessor employing the MIPS TM RISC architecture.
The VR4121 uses the high-performance, super power-saving VR4120TM as the CPU core, and has many peripheral functions such as a DMA controller, software modem interface, serial interface, keyboard interface, IrDA inter
