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.
This structure defines the interface between the low-level tty driver and the tty Routines. The following Routines can be defined unless noted otherwise, they are optional, and can be filled in with a null pointer.
A complete set of bit banged, software driven I2C Routines I created for any PIC device - and they work!! These functions are single master only functions, and are ideal for communicating with things like EEPROMs, LCD Drivers, ADC Converters etc
