The modular and flexible in-circuit emulator MX51, which is available in different variations, and the high-end system AX51 cover hundreds of 8051 derivatives. Various adaptation cables and adapters are available to easily switch to new derivatives or packages to be emulated.
Maximum benefit can be obtained with the full functional feature set available:

• Compact high-end real-time in-circuit emulator, non-intrusive
• Supports up to 42 MHz
• Excellent price / performance ratio
• Solutions from entry-level to high-end with on-site upgrade
• Easy emulation processor setup
• Interrupt support while emulation is halted
• Watchdog support
• Up to 256 KB dual-ported emulation memory, on-the-fly access to variables
• Up to 256K hardware breakpoints for code
• Code banking up to 1 MB
• Intelligent real-time trace with 32K frames, 48 bit, update on-the-fly, filter feature
  (address, data, status, external inputs, time stamp)
• 4 complex triggers, 2 level sequence
• Real-time counter
• Code coverage
• Protection
• Execution profiler
• Performance analysis
• Rias
• Macro language HiSCRIPT
• Support for all popular compilers (Keil, Tasking, IAR)
• Supports all relevant 8051 derivatives up to 42 MHz

There are variants with less functionality available so you can get a system perfectly tailored to your current needs. You are able to easily upgrade functionality within the MX51 or AX51 class with our unique on-site upgrade strategy. For more information on the available variants please refer to the product brochure.

You can also check our Tool Selector for the 8051 Architecture to find the proper tool for your 8051 derivative.