UPD70325 Overview
DATA SHEET MOS INTEGRATED CIRCUIT µPD70325 V25+TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER The µPD70325 (V25+) is a single-chip microcontroller on which 16-bit CPU, RAM, serial interface, timer, DMA controller, interrupt controller, etc. The µPD70325 is software patible with the 16/8-bit singlechip microcontroller µPD70320 (V25TM). The V25+ greatly improves the DMA responsivity and transfer rate pared to the V25.
UPD70325 Key Features
- Internal dedicated baud rate generator
- Asynchronous mode and I/O interface mode
- Interrupt controller
- Programmable priority (8 levels)
- 3 types of interrupt response method Vectored interrupt function, register bank switching function, macro service functi
- 4 types of DMA transfer mode
- Transfer rate Maximum 4 Mbytes/second (when stop control is not executed by DMARQ pin in demand release mode) Maximum 2
- Address pointer (linear) : 20 bits
- Terminal counter : 16 bits
- 16-bit timer : 2 channels Time base counter (20 bits) : 1 channel On-chip clock generator Programmable wait function Sta