Z8 Encore! XP
®
4K Series
Product Specification
109
Infrared Encoder/Decoder
Overview
The Z8 Encore! XP
®
4K 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
illustrates the architecture of the Infrared Endec.
System
Clock
RxD
TxD
Baud Rate
Clock
Infrared
Encoder/Decoder
(Endec)
RXD
TXD
Infrared
Transceiver
RXD
TXD
UART
Interrupt
I/O
Signal Address
Data
Figure 16.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
PS022815-0206
Infrared Encoder/Decoder
ZILOG [ ZILOG, INC. ]
