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C8051 - Legacy-Speed 8-Bit Processor Core

General Description

The C8051 processor core is a single-chip, 8-bit microcontroller that executes all ASM51 instructions and has the same instruction set and timing of the 80C31.

On-chip debugging is an option.

The microcode-free design was developed for reuse in ASICs and FPGAs.

Key Features

  • 8-bit Control Unit.
  • 8-bit Arithmetic-Logic Unit with 8-bit multiplication and division.
  • Instruction decoder.
  • Four 8-bit Input / Output ports.
  • Two 16-bit Timer/Counters.
  • Serial Peripheral Interface in full duplex mode.
  • Synchronous mode, fixed baud rate.
  • 8-bit & 9-bit UART mode, variable baud rate.
  • 9-bit UART mode, fixed baud rate.
  • Multiprocessor communication.
  • Two Level Priority Interrupt System.

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Datasheet Details

Part number C8051
Manufacturer CAST
File Size 159.24 KB
Description Legacy-Speed 8-Bit Processor Core
Datasheet download datasheet C8051 Datasheet

Full PDF Text Transcription for C8051 (Reference)

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C8051 Legacy-Speed 8-Bit Processor Core General Description The C8051 processor core is a single-chip, 8-bit microcontroller that executes all ASM51 instructions and has ...

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p, 8-bit microcontroller that executes all ASM51 instructions and has the same instruction set and timing of the 80C31. On-chip debugging is an option. The microcode-free design was developed for reuse in ASICs and FPGAs. It is strictly synchronous, with positive-edge clocking (except for a flip-flop for internal reset and two flip-flops for gated clocks in the PMU), no internal tri-states and a synchronous reset. Scan insertion is therefore straightforward.