EZ80F920120MOD Zilog, EZ80F920120MOD Datasheet - Page 138

• Manufacturer Part Number: EZ80F920120MOD
• Description: MODULE EZ80F92 512K 20MHZ
• Manufacturer: Zilog

Specifications of EZ80F920120MOD

• Module/board Type: Development Module
• Processor Series: EZ80F92x
• Core: eZ80
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 1 MB
• Interface Type: Cable
• Maximum Clock Frequency: 20 MHz
• Operating Supply Voltage: 0 V to 3.3 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP
• Development Tools By Supplier: eZ80F920200ZCOG
• Minimum Operating Temperature: 0 C
• For Use With/related Products: eZ80F92
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3157; EZ80F920120MOD

Infrared Encoder/Decoder
Functional Description
PS015308-0404
The eZ80F92 device contains a UART to infrared encoder/decoder (endec). The IrDA
endec is integrated with the on-chip UART0 to allow easy communication between the
CPU and IrDA Physical Layer Specification Version 1.4-compatible infrared transceivers,
as illustrated in Figure 25. Infrared communication provides secure, reliable, high-speed,
low-cost, point-to-point communication between PCs, PDAs, mobile telephones, printers,
and other infrared-enabled devices.
Figure 25.Infrared System Block Diagram
When the IrDA endec is enabled, the transmit data from the on-chip UART is encoded as
digital signals in accordance with the IrDA standard and output to the infrared transceiver.
Likewise, data received from the infrared transceiver is decoded by the endec and passed
to the UART. Communication is half-duplex, meaning that simultaneous data transmission
and reception is not allowed.
The baud rate is set by the UART Baud Rate Generator, and supports IrDA standard baud
rates from 9600 bps to 115.2 kbps. Higher baud rates than 115.2 kbps are possible, but do
not meet IrDA specifications for these data rates. The UART must be enabled to use the
System
Clock
Interrupt
Signal
Address
UART0
I/O
Data
To eZ80 CPU
P R E L I M I N A R Y
Baud Rate
eZ80F92
Clock
RxD
TxD
Encoder/Decoder
Infrared
Address
I/O
Data
IR_RxD
IR_TxD
Product Specification
Infrared Encoder/Decoder
eZ80F92/eZ80F93
RxD
TxD
Transceiver
Infrared
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