Z8F082ASH020SC Datasheet, PDF (122/244 Pages) Zilog, Inc. – Z8 Encore XP-R F08xA Series with eXtended Peripherals

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.
System
Clock
UART
RxD
TxD
Baud Rate
Clock
Infrared
Encoder/Decoder
(Endec)
RXD
TXD
Infrared
Transceiver
RXD
TXD
Interrupt I/O
Data
Signal Address
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
PS024705-0405
PRELIMINARY
Infrared Encoder/Decoder