B. E./B. Tech. Degree examination, april/may 2011 Sixth Semester

Give the alternate functions for the port pins of port

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• 5. Specify the single instruction, which clears the most significant bit of B register of 8051

4. Give the alternate functions for the port pins of port RD WR T TINT INT 0 TXD RXD RD – Read data control output WR – Write data control output T – Timer / counter 1 external input or test pin T – Timer / counter 0 external input or test pin INT 1 – Interrupt 1 input pin INT 0 – interrupt 0 input pin TXD – Transmit data pin for serial port in UART mode RXD – Receive data pin for serial port in UART mode 5. Specify the single instruction, which clears the most significant bit of B register of 8051, Download 1.56 Mb. Share with your friends: