GMS30C7201 Datasheet, PDF (250/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

Slow AMBA Peripherals
13.3 SIR
GM30C7201 also contains a IrDA (Infra-red data association) SiR protocol encoder, which is
attached to UART2, this encoder can be switched in to the Tx and Rx signals of UART2 so they
can be used to drive an infra-red interface directly. For more details on the IrDA SiR protocol,
see the appropriate document detailing this protocol standard. If the SiR protocol encoder is
enabled, the UART Tx line is held in the passive state and transitions of the modem status or
the Rx line will have no effect.
Section 12.4.1 gives information on enabling the IrDA encoder function. Section 3.2 describes
programming UART2.
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GMS30C7201 Data Sheet