Function of IE1 in TCON register?(a) External interrupt 1 Edge flag. Not related to timer operations(b) External interrupt 1 Edge flag. Not related to timer operations(c) External interrupt 0 single type control bit(d) External interrupt 1 to be triggered by a falling edge signalThis question was posed to me by my school teacher while I was bunking the class.Question is from Microcontroller (8051- Pin, Registers, Timers) in section Prototyping Embedded Devices of IOT

Function of IE1 in TCON register?(a) External interrupt 1 Edge flag. N

1.	Function of IE1 in TCON register?(a) External interrupt 1 Edge flag. Not related to timer operations(b) External interrupt 1 Edge flag. Not related to timer operations(c) External interrupt 0 single type control bit(d) External interrupt 1 to be triggered by a falling edge signalThis question was posed to me by my school teacher while I was bunking the class.Question is from Microcontroller (8051- Pin, Registers, Timers) in section Prototyping Embedded Devices of IOT
Answer» Right option is (a) External INTERRUPT 1 EDGE flag. Not related to timer operations To elaborate: TCON register has 8 bits. 3rd bit has an IE1 register. This is an external interrupt.

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