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On reset DDR registers of all ports are set to:

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+1 vote
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in Microcontroller by (14.6k points)
On reset DDR registers of all ports are set to:

(a) 0

(b) 1

(c) None of the mentioned

(d) 0 & 1

I have been asked this question during an online interview.

My doubt is from I/O Port Programming and Addressing Modes in chapter AVR Microcontroller of Microcontroller

1 Answer

0 votes
by (24.2k points)
Right option is (a) 0

Best explanation: On reset, the DDR registers of all the ports are set to 0 which means that the by default all ports are set as input ports.

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