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**[http://www.retro.co.za/ccc/8080/SDK-80/MCS-80%20System%20Design%20Kit%20Users%20Guide.pdf User's Manual]
==Intel
The HSE-49 emulator of 1979 was a stand-alone development tool with on-board 33-key keypad, 8-character display, two 8039 microcontrollers, 2K bytes of user-program RAM, a serial port and cable, and a ROM-based monitor which supervises the emulator operation and user interface. The emulator provides a means for executing and debugging programs for the 8048/8049 family of microcontrollers at speeds up to 11 MHz. It interfaced to a user-designed system through an emulation cable and 40-pin plug, which replaced the MCS-48 device in the user's system. Using the HSE-49 keypad, a designer can run programs in real-time or single-step modes, set up to 8000 breakpoint flags, and display or change the contents of user program memory, internal and external data memory, and internal MCS-48 hardware registers. When linked to a host Intellec development system, the HSE-49 emulator system-debugging capabilities, with the development system program assembly and storage facilities, provide the tools required for total product development.
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