UPD30121 - 64-/32-BIT MICROPROCESSOR
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