Specifications

mikroElektronika | Free Online Book | PIC Microcontrollers | Chapter 6: Serial Communication Modules
TOC
Introduction
Ch. 1
Ch. 2
Ch. 3
Ch. 4
Ch. 5
Ch. 6
Ch. 7
Ch. 8
Ch. 9
App. A
App. B
App. C
Chapter 6: Serial Communication Modules
EUSART
The Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) module is a serial I/O communication
peripheral. It is also known as Serial Communications Interface (SCI). It contains all clock generators, shift registers and
data buffers necessary to perform an input or output serial data transfer independently of the device program execution.
As its name states, apart from the usage of clock for synchronization, this module can also establish asynchronous
connection, which makes it irreplaceable in some applications.
For example, in the event that it is
difficult or impossible to provide
special channels for clock and data
transfer (for example, radio remote
control or infrared), the EUSART
module presents itself as a convenient
solution.
Fig. 6-1 Remote Control and Plane
The EUSART system integrated into the PIC16F887 microcontroller has the following features:
Full-duplex asynchronous transmit and receive;
Programmable 8- or 9-bit character length;
Address detection in 9-bit mode;
Input buffer overrun error detection; and
Half-duplex communication in synchronous mode (master or slave).
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