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The mode that is programmed using “end interrupt/error mode set command” is

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in Microprocessor by (39.4k points)
The mode that is programmed using “end interrupt/error mode set command” is

(a) scanned keyboard special error mode

(b) scanned keyboard with N-key rollover

(c) scanned keyboard mode with 2 key lockout

(d) sensor matrix mode

I had been asked this question during an interview.

My question comes from the Keyboard/Display Controller 8279 in portion Special Purpose Programmable Peripheral devices and their Interfacing of Microprocessor

1 Answer

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by (49.2k points)
The correct option is (a) scanned keyboard special error mode

For explanation I would say: The scanned keyboard special error mode is programmed using end interrupt/error mode set command. This mode is valid only under the N-key rollover mode.

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