These routines transmit and receive serial data using two general
* I/O pins, in 8 bit, No parity,
资 源 简 介
These routines transmit and receive serial data using two general
* I/O pins, in 8 bit, No parity, 1 stop bit format. They are useful
* for performing serial I/O on 8051 derivatives not having an
* internal UART, or for implementing a second serial channel.
