Z16F2800100ZCOG Zilog, Z16F2800100ZCOG Datasheet - Page 188

• Manufacturer Part Number: Z16F2800100ZCOG
• Description: DEV KIT FOR Z16F ZNEO
• Manufacturer: Zilog
• Series: ZNEO™r
• Type: MCUr

Specifications of Z16F2800100ZCOG

• Contents: Evaluation Board, Software and Documentation
• For Use With/related Products: Z16F Series
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4537

PS022008-0810
Baud Rate
IR_TXD
UART’s
Clock
TXD
Transmitting IrDA Data
7-clock
delay
The baud rate is set by the UART’s baud rate generator and supports IrDA standard baud
rates from 9600 baud to 115.2 Kbaud. Higher baud rates are possible, but do not meet
IrDA specifications. The UART must be enabled to use the Infrared Endec. The Infrared
Endec data rate is calculated using the below equation:
The data to be transmitted using the infrared transceiver is first sent to the UART. The
UART’s transmit signal (TXD) and baud rate clock are used by the IrDA to generate the
modulation signal (IR_TXD) that drives the infrared transceiver. Each UART/Infrared
data bit is 16-clocks wide. If the data to be transmitted is 1, the IR_TXD signal remains
Low for the full 16-clock period. If the data to be transmitted is 0, a 3-clock high pulse is
output following a 7-clock low period. After the 3-clock high pulse, a 6-clock low pulse is
output to complete the full 16-clock data period.
transmission. When the Infrared Endec is enabled, the UART’s TXD signal is internal to
the ZNEO Z16F Series products while the IR_TXD signal is output through the TXD pin.
Start Bit = 0
Infrared Data Rate (bps)
16-clock
3-clock
period
pulse
Data Bit 0 = 1
Figure 32. Infrared Data Transmission
P R E L I M I N A R Y
=
Data Bit 1 = 0
--------------------------------------------------------------------------------------------- -
16 UART Baud Rate Divisor Value

System Clock Frequency (Hz)
Figure 32
Data Bit 2 = 1
displays IrDA data
Infrared Encoder/Decoder
Product Specification
ZNEO
Data Bit 3 = 1
Z16F Series
172