In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jon Williams wrote:

Are you sure you don't want to use PULSIN?  If I remember correctly, a Sony IRCS start bit is 2.4 milliseconds wide.  You could wait for the start bit like this:

Get_IR_Byte:
  DO
    PULSIN IrPin, 0, bitWidth
  LOOP WHILE bitWidth < 220

This works because the default resolution of 10 uS means a 2.4 millisecon pulse from the IR receiver would put a value of 240 in the variable called bitWidth.  You could receive the next eight bits like this:

Get_Bits:
  temp1 = 0
  FOR idx = 1 TO 8
    temp1 = temp1 >> 1
    PULSIN IrPin, 0, bitWidth
    IF bitWidth > 100 THEN
      temp1.7 = 1
    ENDIF
  NEXT
  RETURN temp1

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