UPD30181A

DATA SHEET MOS INTEGRATED CIRCUIT µPD30181A, 30181AY VR4181A 64-/32-BIT MICROPROCESSOR TM DESCRIPTION The µPD30181A and 30181AY (VR4181A), which are high-performance 64-/32-bit microprocessors employing the TM TM RISC (reduced instruction set computer) architecture developed by MIPS , are products in the VR Series of microprocessors manufactured by NEC. The VR4181A includes as its CPU the VR4120™ core, an ultra-low-power-consumption core featuring cache memory, a high-speed product-sum operation unit, and a memory management unit. Other on-chip components include an LCD controller, CompactFlash controller, USB host/function controller, DMA controller, SDRAM controller, 2 2 PWM controller, AC97/I S audio interface, full-duplex asynchronous serial interface, IrDA interface, I C serial interface, keyboard interface, touch panel interface, real-time clock, A/D converter, D/A converter, and other controllers and interfaces required for battery-driven mobile information devices, fixed compact information devices, car navigation systems, and compact embedded devices. Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before designing. VR4181A Hardware User’s Manual (U16049E) TM VR4100 Series Architecture User’s Manual (U15509E) FEATURES { VR4120 core (64-bit RISC core) on chip as CPU { Pipeline clock: 131 MHz { Conforms to MIPS III (except for FPU, LL and SC instructions) and MIPS16 instruction sets { Supports MACC and DMACC hig...