Freescale Semiconductor MCF5480 - Manual (Page 763)

MCF548x Reference Manual, Rev. 3
Freescale Semiconductor 26-1
Chapter 26
Programmable Serial Controller (PSC)
26.1 Introduction
This chapter describes the MCF548x programmable serial controller (PSC).
26.1.1 Block Diagram
A block diagram of the PSC/IrDA module is shown in Figure 26-1 below.
Figure 26-1. PSC/IrDA Block Diagram
26.1.2 Overview
The PSC/IrDA module provides asynchronous, synchronous, and IrDA 1.1 compliant receiver/transmitter
serial communications. Each receiver and transmitter contains a 512-byte FIFO to reduce interrupt
overhead.
The MCF548x contains four programmable serial controllers.
26.1.3 Features
The primary features of the PSC/IrDA module are as follows:
• Full duplex receiver and transmitter in all modes
• Seven operation modes (UART, three soft modem modes, and three IrDA modes)
• Two 512-byte FIFOs
26.1.4 Modes of Operation
The operation modes supported by the PSC/IrDA module are as follows.
• Universal asynchronous receiver transmitter (UART) mode
Soft
MIR
FIR
SIR
UART
Modem
Serial MUX
Bus
Control
Registers
FIFOs
Modem
CODEC
CODEC
CODEC
Interface
Co
mm Bus
Control
Mux
Ports
IP Bus