AN555 Datasheet (Microchip) - Software Implementation of Asynchronous Serial I/O

AN555, Software Implementation of Asynchronous Serial I/O

of these bits in the Serial Status/Control Reg table given later).

Summary of PutChar function: 1.

Make sure _txmtProgress & _rcvOver bits are cleared 2.

Load TxReg with data to be transmitted 3.

Call PutChar function Receive Mode The reception mode implementation is slightly different from the tran

M AN555 Software Implementation of Asynchronous Serial I/O Author: Code Update: Amar Palacherla Microchip Technology Scott Fink Microchip Technology Inc.

INTRODUCTION PIC16CXXX microcontrollers from Microchip Technology, Inc., high-performance, EPROM-based 8-bit microcontrollers.

Some of the members of this series (like the PIC16C71 and PIC16C84) do not have an on-chip hardware asynchronous serial port.

This application note describes the interrupt driven software implementation of Asynchro