EZ80F910200ZCO Zilog, EZ80F910200ZCO Datasheet - Page 55
EZ80F910200ZCO
Manufacturer Part Number
EZ80F910200ZCO
Description
KIT DEV FOR EZ80F91 W/C-COMPILER
Manufacturer
Zilog
Datasheet
1.EZ80F910200ZCO.pdf
(78 pages)
Specifications of EZ80F910200ZCO
Processor To Be Evaluated
eZ80F91
Interface Type
Ethernet
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3154
EZ80F910200ZCO
EZ80F910200ZCO
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UM014220-0508
Figure 15
The eZ80F91 Module features an Infrared Encoder/Decoder register that
configures the IrDA function. This register is located at address
the internal I/O register map.
The Infrared Encoder/Decoder register contains three control bits. Bit 0
enables or disables the IrDA encoder/decoder block. Bit 1, if it is set,
enables received data to pass into the UART0 Receive FIFO data buffer.
Bit 2 is a test function that provides a loopback sequence from the TxD
pin to the RxD input.
Bit 1, the Receive Enable bit, is used to block data from filling up the
Receive FIFO when the eZ80F91 Module is transmitting data. Because
IrDA signal passes through the air as its transmission medium, transmit-
ted data can also be received. This Receive Enable bit prevents this data
from being received. After the eZ80F91 Module completes transmitting,
this bit is changed to allow for incoming messages.
The code that follows provides an example of how this function is
enabled on the eZ80F91 Module.
External Disable
eZ80F91
Device
Figure 15. IrDA Hardware Connections
displays the eZ80F91 Module IrDA hardware connections.
PD2(IR_SD)
PD1(RxD)
PD0(TxD)
eZ80F91 Development Kit
SD
RD
TD
IrDA
User Manual
eZ80F91 Module
0BFh
in
50
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