NEC PD78F9488 - Manual (Page 274)

CHAPTER 15 REMOTE CONTROLLER RECEIVER ( µ PD789489, 78F9489 ONLY)
User’s Manual U15331EJ4V1UD
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(4) Remote controller receive GPHS compare register (RMGPHS)
This register is used to detect the high level of a remote controller guide pulse (short side).
RMGPHS is set with an 8-bit memory manipulation instruction.
RESET input sets RMGPHS to 00H.
(5) Remote controller receive GPHL compare register (RMGPHL)
This register is used to detect the high level of a remote controller guide pulse (long side).
RMGPHL is set with an 8-bit memory manipulation instruction.
RESET input sets RMGPHL to 00H.
(6) Remote controller DLS compare register (RMDLS)
This register is used to detect the low level of a remote controller data (short side).
RMDLS is set with an 8-bit memory manipulation instruction.
RESET input sets RMDLS to 00H.
(7) Remote controller receive DLL compare register (RMDLL)
This register is used to detect the low level of a remote controller data (long side).
RMDLL is set with an 8-bit memory manipulation instruction.
RESET input sets RMDLL to 00H.
RIN
Allowable
range
Counter value
RMGPHS register value
RMGPHL register value
Guide pulse
If RMGPHS ≤ counter value < RMGPHL
is satisfied, it is assumed that the high
level of the guide pulse has been
successfully received.
RIN
Counter value
RMDLS register value
RMDLL register value
Data 0/data 1
Allowable
range
If RMDLS ≤ counter value < RMDLL
is satisfied, it is assumed that the low level
of data 0 or data 1 has been successfully
received.