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UPD705101 Datasheet(PDF) 1 Page - NEC

Part # UPD705101
Description  32-BIT MICROPROCESSOR
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
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UPD705101 Datasheet(HTML) 1 Page - NEC

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V831TM
32-BIT MICROPROCESSOR
MOS INTEGRATED CIRCUIT
µPD705101
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.
Detailed explanations of the functions, etc. are given in the following user’s manuals. Be sure to read the
manuals before designing your systems.
V831 User’s Manual -Handware
: U12273E
V830 FamilyTM User’s Manual -Architecture : U12496E
Document No. U12979EJ1V0DS00 (1st edition)
Date Published January 1998 N
Printed in Japan
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
The information in this document is subject to change without notice.
©
1998
DATA SHEET


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