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In BSR mode, only port C can be used to

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in Microprocessor by (39.4k points)
In BSR mode, only port C can be used to

(a) set individual ports

(b) reset individual ports

(c) set and reset individual ports

(d) programmable I/O ports

The question was asked during an interview.

The question is from Modes of Operation of 8255 topic in portion Basic Peripherals and their Interfacing with 8086/88 of Microprocessor

1 Answer

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by (49.2k points)
Correct choice is (c) set and reset individual ports

To explain I would say: In BSR (Bit Set-Reset) Mode, port C can be used to set and reset its individual port bits.

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