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The answer to your question is YES as well as NO!!!!
Yes because serial pin is basically a port pin with an extra function.
And NO, because, when you perform serial communication there's a requirement of Some frequency(BAUD RATE) which any other normal pins do not have d ability except for P3.0 P3.1.
Hope I could clear your doubt.
Cheers,
Jai Bathija.
understood what u said. my aim to send data serially to 74hc595 which is a serial in parallel out shift register. For this i have to give 1 serial data input through which we can get parralel outputs.
for refernce the datasheet of 74hc595
By using 3 pins we can send data to the 74hc595, so i want to generate a clock for the 74hc595 to receive data serially.
But i cannot send data seriallly through single pin in 8051 mc like serial port. you said it is possible to send data serially through another pin in 8051. can u explan the algorithm how to do it.
...my aim to send data serially to 74hc595 which is a serial in parallel out shift register. For this i have to give 1 serial data input through which we can get parralel outputs.
for refernce the datasheet of 74hc595
By using 3 pins we can send data to the 74hc595, so i want to generate a clock for the 74hc595 to receive data serially.
But i cannot send data seriallly through single pin in 8051 mc like serial port. you said it is possible to send data serially through another pin in 8051. can u explan the algorithm how to do it.
You can certainly emulate the majority of serial interfaces by utilizing only general I/O pins, rather than a hardware module specifically designed for the interface, including: UART, I2C, TWI, 1-Wire, SPI, etc.
The technique is often referred to as bit banging or soft, for example a UART interface comprimised of general I/O is referred to as a bit banged UART or soft UART.
The 74HC595 shift register is often interfaced using an SPI interface. The following discussion thread is a detailed discussion of just such an implementation using a PIC microcontroller, however most of the concepts can be adapted to the 8051 variants:
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