STFPC320 STMicroelectronics, STFPC320 Datasheet - Page 55

• Manufacturer Part Number: STFPC320
• Description: Front Panel Controller/driver With Standby Power Management And Real-time Clock
• Manufacturer: STMicroelectronics

STFPC320
15.6
Sym pulse
End of transmission
Matsushita remote control format
The modulated carrier is usually derived from 440kHz and is 1/12 of the frequency with ½
duty cycle.
When data are transmitted repeatedly, the frame cycle is 104.7ms or 240 period.
A frame consists of a syn pulse, a five-bit custom code, six-bit data code, a five-bit inverted
custom code and a six-bit inverted data code.
The timing definitions of the output code waveform are shown below.
Data “1”
Sym pulse
Data “0”
C0 C1 C2 C3 C4 D1 D2 D3 D4 D5 C’0 C’1
240T
code 5 bit
Custom
2T
2T
2T 2T
8T
6T
Custom code
240T
5 bit
8T
C’0
Inverted custom
code 5 bit
240T
C’2C’3C’4
D’0
Inverted data
D’1 D’2D’3D’4
code 6 bit
240T
Remote control protocols
End of transmission
D’5
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