UPD30121 Datasheet - NEC

UPD30121 64-/32-BIT MICROPROCESSOR

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.

UPD30121 Features

* Employs 64-bit MIPS architecture

* Conforms to MIPS III instruction set (deleting FPU, LL, LLD, SC, and SCD instructions)

* Optimized 6-stage pipeline

* Supports MIPS16 instruction set

* Supports high-speed product-sum operation instructions

* Suppor

UPD30121_NEC.pdf