Figure A1. Block Diagram of ASDL-7021 interface with Recommended Transceiver and Host Microcontroller

Appendix A: General Application Guide for the ASDL-7021 Integrated FIR/VFIR IrDA Controller

ASDL-7021

FIR/VFIR IrDA

Controller

Host

Microcontroller

Address

Bus

Data

Bus

/CS

/OE

/WE

/IRQ

/SD

/RESET

CLKSEL

CLKIN

IrTX0(IrDA)

IrTX1(Remote

IrRXD0

IrOUT0(IrMode/S CLK)

IrOUT1 (SD)

IrDA Transceiver

(can be STC or non-STC

with/without RC)

RECOMMENDED FIR HW:

ASDL-3023, HSDL-3021,

HSDL-3020 and HSDL-3220

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