STFPC311 STMicroelectronics, STFPC311 Datasheet - Page 25

• Manufacturer Part Number: STFPC311
• Description: IC CTRLR/DRVR FRONT PANEL 52PQFP
• Manufacturer: STMicroelectronics

Specifications of STFPC311

• Display Type: Vacuum Fluorescent (VF)
• Interface: Serial
• Current - Supply: 5mA
• Voltage - Supply: 3 V ~ 33.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-MQFP, 52-PQFP
• For Use With: 497-8394 - BOARD DEMO STFPC311/ST72264497-6454 - BOARD EVAL BASED ON STFPC311
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Configuration: -
• Digits Or Characters: -
• Lead Free Status / Rohs Status: No

STFPC311
9
9.1
Note:
Remote control protocols
RC-5 remote control
RC-5 remote control protocol is based on Bi-phase (also known as Manchester) encoding as
shown in
The encoding is set with reference to the IR_DATA_IN signal (after the photo diode). The MSB
is transmitted first see
●
●
●
●
Figure 21. Bi-phase encoding
Figure 22. RC-5 protocol frame
Figure 23. RC-5 reception example
The first two Start bits (S1 and S2) are synchronization bits. For normal operation, they are
always set to '11' on the transmission side. After the photo diode, there is one inversion.
The data at the IR_DATA_IN of the STFPC311 is shown in
The next bit is the Toggle bit. This bit is inverted each time a key on the remote control is
pressed.
Bits A1and A5 are the Address bits. The address bits indicate the intended application that
the remote control protocol is used for.
Bits C1..C6 are the Command bits. The command bits instruct the STFPC311 as to what
action is to be taken. The data representing the RC-5 protocol is sent as a byte of data
which consists of a Toggle bit and a ‘0’ bit followed by 6 bits of Command data.
Figure
21.
Figure
22.
Figure 23 on page 25
9 Remote control protocols
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