upd6p9 Renesas Electronics Corporation., upd6p9 Datasheet - Page 40

• Manufacturer Part Number: upd6p9
• Description: 4-bit Single-chip Microcontroller For Infrared Remote Control Transmission
• Manufacturer: Renesas Electronics Corporation.

40
REM output
(5) Carrier waveform (enlarged waveform of each code’s high period)
(6) Bit array of each code
Leader code
Caution To prevent malfunction with other systems when receiving data in the NEC transmission
format, not only fully decode (make sure to check Data Code as well) the total 32 bits of the
16-bit custom codes (Custom Code, Custom Code’) and the 16-bit data codes (Data Code,
Data Code) but also check to make sure that no signals are present.
C
0
C
1
Custom code
C
2
C
8.77 s
3
C
4
µ
C
5
C
6
C
7
26.3 s
Data Sheet U15144EJ1V1DS
C
C
C
or
0
0
o
'
C
µ
C
C
or
1
1
1
'
Custom code'
C
C
C
or
2
2
2
'
C
C
C
or
3
3
3
9 ms or 0.56 ms
Carrier frequency: 38 kHz
'
C
C
C
or
4
4
4
'
C
C
C
or
5
5
5
'
C
C
C
or
6
6
6
'
C
C
C
or
7
7
7
'
D
0
D
1
D
Data code
2
D
3
D
4
D
5
D
6
D
7
D
0
D
1
D
Data code
2
D
3
D
4
D
5
µ PD6P9
D
6
D
7