z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 182

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Infrared Encoder/Decoder
Architecture
Operation
PS022006-0207
System
Clock
Interrupt
Signal
The ZNEO Z16F Series products contain two fully-functional, high-performance UART
to Infrared encoder/decoders (Endecs). Each Infrared Endec is integrated with an on-chip
UART to allow easy communication between the ZNEO 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.
Figure 31
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
infrared transceiver via the TXD pin. Similarly, data received from the infrared transceiver
is passed to the Infrared Endec via the RXD pin, decoded by the Infrared Endec, and then
passed to the UART. Communication is half-duplex, which means that simultaneous data
transmission and reception is not allowed.
Address
UART
I/O
illustrates the architecture of the Infrared Endec.
Figure 31. Infrared Data Communication System Block Diagram
Data
Baud Rate
Clock
TxD
RxD
P R E L I M I N A R Y
Encoder/Decoder
Infrared
(Endec)
RXD
TXD
Infrared Encoder/Decoder
Product Specification
ZNEO
™
RXD
TXD
Transceiver
Z16F Series
ZHX1810
Infrared
ZiLOG
168