PC87109VBE Nuvoton Technology Corporation of America, PC87109VBE Datasheet - Page 15

• Manufacturer Part Number: PC87109VBE
• Description: IC CONTROLLER ADV UART 32-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of PC87109VBE

• Features: Transmit Deferral
• Number Of Channels: 2, DUART
• Fifo's: 16 Byte
• Voltage - Supply: 5V
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *PC87109VBE

2.10 Optical Transceiver Interface
The PC87109 implements a very flexible interface for the
external infrared transceiver. Several signals are provided
for this purpose. A transceiver module with one or two
receive signals can be directly interfaced without any
additional logic.
Since various operational modes are supported, the
transmitter power as well as the receiver filter in the
transceiver module must be configured according to the
selected mode.
Two special interface pins (ID/IRSL[1-0]) are used to
control the operational mode of the infrared transceiver.
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The logic levels of the ID/IRSL[1-0] pins are directly
controlled by the software (through the setting of bits 1-0 in
the IRCFG1 register).
The ID/IRSL[1-0] pins will power up as inputs and can be
driven by an external source. When in input mode, they
can be used to read the identification data of Plug-n-Play
infrared adapters.
The ID0/IRSL0/IRRX2 pin can also function as an input to
support an additional infrared receive signal. In this case,
however, only one configuration pin will be available. The
IRSL0_DS and IRSL1_DS bits in the IRCFG4 register
determine the direction of the ID/IRSL[1-0] pins.
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