High speed in-circuit emulator for 8039 microcomputer

An 8039/49 single chip microcomputer based 'High speed in-circuit emulator is presented here.The single chip microcomputers distinguish themselves from microprocessors by the fact that they have their memory-ROM & RAM and their Input/Output ports integrated on the chip itself emulator presented here (USE- 49)allows you to run user programs on the microcomputer chip for which they have been designed, at any time in the development cycle. You can run and debug a software program on USE-49 emulator before user hardware is available.