Development Tools for 8051 microcontrollers

PICE-52 In-Circuit Emulator

Main Features

  • Real-time non-intrusive emulation for selected 8051 microcontrollers;
  • Tiny emulator header that plugs directly into a target socket - 95x70x40 mm;
  • Connects to a PC USB or serial port;
  • Up to 2M bytes program memory & 512K data memory (64K + 64K by default);
  • Memory banking - up to 32 banks by 64K;
  • Memory mapping between the ICE and target with 256 bytes resolution;
  • Up to 1M true hardware breakpoints at Program memory and memory access breakpoints;
  • Up to 1M true hardware breakpoints at Xdata memory access for Read & Write;
  • Breakpoints on access to on-chip data memories: SFRs, direct data memory, on-chip Xdata, etc.;
  • 4 complex breakpoints / triggers;
  • Up to 64K frame deep by 128 bit wide trace buffer (16K x 128K by default);
  • Trace cable with 8 micro hooks for entering signals and two hooks for outputting triggers;
  • Precisely programmable clock generator;
  • 48-bit on-board timer;
  • Shadow RAM provides target device RAM real-time access without disturbing emulation;
  • "On-the-fly" access to the memory, breakpoints, tracer, and timer;
  • Memory coverage feature enables finding "dead" code;
  • Precisely controlled voltage regulator 2.0 to 5.5V range;
CodeMaster-52 IDE enables:
  • Project-level support for the Phyton assembler and C compilers from Keil, IAR and Raisonance;
  • Source-level debugging for all popular C compilers and assemblers;

Download Demo

There are three main board configurations:

  • MR2-52-03U - provides emulation for 64K code + 64K data memory, does not support external memory banking;
  • MR2-52-05U - provides emulation for 1M code + 448K data memory, supports external memory banking.
  • MR2-52-06U - provides emulation for 2M code + 448K data memory, supports external memory banking.

A POD or a daughter module is built around an execution processor that emulates a behavior of the target MCU being under control of the loaded application program. PICE-52 can be equipped with a variety of changeable PR2-52-xxx pods.

An Adapter provides mechanical connection of the emulator pod to the target board. It plugs directly to a DIP-40, PLCC-44 or QFP-44 target socket.

Check if Phyton has an emulator for your 8051 device and request a quote

Phyton has been producing and selling 8051 in-circuit emulators for more than 20 years and keep selling them nowadays. To check if our 8051 emulators support your target device and would like to get a quote, please email your inquiry to Your request should include the following information about the target device and your development environment:

  • Silicon manufacturer (for example: Atmel, NXP, Microchip, etc.);
  • Device part number (for example: AT89C52ED2, SST89E516RD2, etc.);
  • Mechanical chip package (for example: DIP 40-pin, PLCC 44-pin, etc.);
  • Whether your target board has an external memory and, if so, its memory structure;
  • A compiler brand, if used for project management.

We will be sure to respond to your request promptly.