Which of the following allows access to all the hardware within the system?(a) debugger(b) JTAG(c) onboard debugger(d) simulatorThe question was posed to me in a national level competition.I want to ask this question from Emulation Techniques topic in division Emulation and Debugging Techniques of Embedded Systems

Which of the following allows access to all the hardware within the sy

1.	Which of the following allows access to all the hardware within the system?(a) debugger(b) JTAG(c) onboard debugger(d) simulatorThe question was posed to me in a national level competition.I want to ask this question from Emulation Techniques topic in division Emulation and Debugging Techniques of Embedded Systems
Answer» Right answer is (b) JTAG To explain: The JTAG can access all the hardware within the system. They provide a way of taking over the PINS of a device and ALLOWS the different bit patterns to be IMPOSED on the pins which ALLOW other circuits to be tested with the imposed pins.

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