Timing - NEC PD789488 User Manual

CHAPTER 15 REMOTE CONTROLLER RECEIVER (

15.4.3 Timing

Operation varies depending on the positions of the RIN input waveform below.
(1) Guide pulse high level width determination
RIN
RIN
RIN
Relationship Between
RMGPHS/RMGPHL/Counter
Counter < PMGPHS
PMGPHS ≤ counter < PMGPHL
PMGPHL ≤ counter
(2) Data low level width determination
RIN
RIN
RIN
Relationship Between RMDLS/RMDLL/Counter
Counter < RMDLS
RMDLS ≤ counter < RMDLL
RMDLL ≤ counter
µ
<1>
<2>
RMGPHS
RMGPHL
Allowable
range
Position of Waveform
<1>: Short Measuring guide pulse high-level width is started
from the next rising edge.
<2>: Within the range INTGP is generated.
Data measurement is started.
<3>: Long Measuring guide pulse high-level width is started
from the next rising edge.
<1>
<2>
RMDLS
RMDLL
Allowable
range
∆
Position of Waveform
<1>: Short Error interrupt INTRERR is generated.
Measuring guide pulse high-level width is started.
<2>: Within the range Measuring data high-level width is started.
<3>: Long Measuring the end width is started from the ∆ point.
User's Manual U15331EJ4V1UD
PD789489, 78F9489 ONLY)
<3>
Corresponding Operation
<3>
Corresponding Operation
281