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Port 1 lines are used during programming of

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in Microprocessor by (39.4k points)
Port 1 lines are used during programming of

(a) external EPROM and EEPROM

(b) external ROM and RAM

(c) internal ROM and RAM

(d) internal EPROM and EEPROM

The question was posed to me in an online interview.

Asked question is from Interfacing With 8051 Ports -1 in division Microcontroller 8051 of Microprocessor

1 Answer

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by (49.2k points)
The correct choice is (d) internal EPROM and EEPROM

The best explanation: Port 1 lines are used as lower byte of 16-bit address bus during programming of internal EPROM or EEPROM.

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