DESCRIPTION

The μPD70501 (V831) is a 32-bit RISC microprocessor for embedded control applications, with a high-performance 32-bit V830TM processor core and many peripheral functions such as a DRAM/ROM controller, 4-channel DMA controller, real-time pulse unit, serial interface, and interrupt controller.

In addition to high interrupt response speed and optimized pipeline structure, the V831 offers sum-of-products operation instructions, concatenated shift instructions, and high-speed branch instructions to realize multimedia functions, and therefore, can provide high performance in multimedia systems such as internet/intra-net systems, car navigation systems, high-performance televisions, and color FAXes.

FEATURES

? CPU function

? V830-compatible instructions

? Instruction cache : 4 KB

? Instruction RAM : 4 KB

? Data cache : 4 KB

? Data RAM : 4 KB

? Minimum number of instruction execution cycles : 1 cycle

? Number of general purpose registers : 32 bits × 32

? Memory space and I/O space : 4 GB each

? Interrupt/exception function

? Non-maskable : External input : 1

? Maskable : External input : 8 (of which 4 are multiplexed with internal sources)

Internal source: 11 types

? Bus control function

? Wait control function

? Memory access control function

? DMA controller : 4 channel

? Serial interface function

? Asynchronous serial interface (UART): 1 channel

? Clocked serial interface (CSI) : 1 channel

? Dedicated baud rate generator (BRG) : 1 channel

? Timer/counter function

? 16-bit timer/event counter : 1 channel

? 16-bit interval timer : 1 channel

? Port function : 3 I/O ports

? Clock generation function : PLL clock synthesizer

? Standby function : HALT and STOP modes

? Debug function

? Debug-dedicated synchronous serial interface : 1 channel

? Trace-dedicated interface : 1 channel