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The pin that clears the control word register of 8255 when enabled is

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in Microprocessor by (39.4k points)
The pin that clears the control word register of 8255 when enabled is

(a) CLEAR

(b) SET

(c) RESET

(d) CLK

The question was posed to me during a job interview.

This interesting question is from PIO 8255 (Programmable Input in chapter Basic Peripherals and their Interfacing with 8086/88 of Microprocessor

1 Answer

0 votes
by (49.2k points)
Right answer is (c) RESET

The explanation: If reset pin is enabled then the control word register is cleared.

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