z8f0813 ZiLOG Semiconductor, z8f0813 Datasheet - Page 126

• Manufacturer Part Number: z8f0813
• Description: High-performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Infrared Encoder/Decoder Control Register Definitions
PS024314-0308
Caution:
baud rate clocks to plus eight baud rate clocks around the expected time of an incoming
pulse. If an incoming pulse is detected inside this window this process is repeated. If the
incoming data is a logical 1 (no pulse), the Endec returns to the initial state and waits for
the next falling edge. As each falling edge is detected, the Endec clock counter is reset,
resynchronizing the Endec to the incoming signal, allowing the Endec to tolerate jitter and
baud rate errors in the incoming datastream. Resynchronizing the Endec does not alter the
operation of the UART, which ultimately receives the data. The UART is only synchro-
nized to the incoming data stream when a Start bit is received.
All Infrared Endec configuration and status information is set by the UART control
registers as defined in
To prevent spurious signals during IrDA data transmission, set the IREN bit in the
UART Control 1 register to 1 to enable the Infrared Encoder/Decoder before enabling
the GPIO port alternate function for the corresponding pin.
Universal Asynchronous Receiver/Transmitter
Z8 Encore! XP
Product Specification
Infrared Encoder/Decoder
on page 93.
®
F0823 Series
116