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