Z8F082ASH020SC datasheet(122/244 Pages) ZILOG

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PS024705-0405

P R E L I M I N A R Y

Infrared Encoder/Decoder

Z8 Encore! XP® F08xA Series

Product Specification

104

Infrared Encoder/Decoder

Overview

The Z8 Encore! XP® F08xA Series products contain a fully-functional, high-performance

UART to Infrared Encoder/Decoder (Endec). The Infrared Endec is integrated with an on-

chip UART to allow easy communication between the Z8 Encore!® and IrDA Physical

Layer Specification, Version 1.3-compliant infrared transceivers. Infrared communication

provides secure, reliable, low-cost, point-to-point communication between PCs, PDAs,

cell phones, printers and other infrared enabled devices.

Architecture

Figure 15 illustrates the architecture of the Infrared Endec.

Figure 15.Infrared Data Communication System Block Diagram

Operation

When the Infrared Endec is enabled, the transmit data from the associated on-chip UART

is encoded as digital signals in accordance with the IrDA standard and output to the infra-

red transceiver through the TXD pin. Likewise, data received from the infrared transceiver

Interrupt

Signal

RXD

TXD

Infrared

Encoder/Decoder

UART

RxD

TxD

System

Clock

I/O

Address

Data

Infrared

Transceiver

RXD

TXD

Baud Rate

Clock

(Endec)

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