NEC PD789488 User Manual page 282

CHAPTER 15 REMOTE CONTROLLER RECEIVER (
(3) Data high level width determination
RIN
RIN
RIN
RIN
RIN
Relationship Between
RMDH0S/RMDH0L/RMDH1S/RMDH1L/Counter
Counter < RMDH0S
RMDH0S ≤ counter < RMDH0L
RMDH0L ≤ counter < RMDH1S
RMDH1S ≤ counter < RMDH1L
RMDH1L ≤ counter
282
<1>
<2>
RMDH0S
RMDH0L
RMDH1S
RMDH1L
Allowable
range
Position of Waveform
<1>: Short
<2>: Within the range
<3>: Outside of the
range
<4>: Within the range
<5>: Long
User's Manual U15331EJ4V1UD
µ
PD789489, 78F9489 ONLY)
<3>
<4> <5>
Allowable
range
∆
Corresponding Operation
Error interrupt INTRERR is generated.
Measuring the guide pulse high-level width is started
at the next rising edge.
Data 0 is received.
Measuring data low-level width is started.
Error interrupt INTRERR is generated.
Measuring the guide pulse high-level width is started
at the next rising edge.
Data 1 is received.
Measuring the data low-level width is started.
Error interrupt INTRERR is generated at the ∆ point.
Measuring the guide pulse high-level width is started
at the next rising edge.