STFPC311(2012) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STFPC311
(Rev.:2012)

Front panel controller/driver with standby power management

STMicroelectronics 

STFPC311

Remote control protocols

9.2

SPI interface IR data transmission

The IR data is sent on the DOUT pin of the SPI interface when the micro controller issues a

IR data read command. The data is sent in 3 bytes with LSB transmitted first as shown in

the Figure below:

The RC data consists of RC address, start bit, toggle bit and the RC command received.

The extra bits are stuffed with 1’s to make it a 3-byte packet. These extra bits at the end of

the packet should be ignored.

Figure 26. RC-6 protocol frame

t(s) The RC data consists of RC address, start bit, toggle bit and the RC command received.

c The extra bits are stuffed with 1’s to make it a 3-byte packet. These extra bits at the end of

u the packet should be ignored.

Prod 9.3

NEC remote control

lete This remote control protocol uses pulse distance modulation. Each bit consists of a high

level of fixed time "t", followed by a low level that varies in width. A space that is "t"

so represents a logic '0' and a space that is "3t" represents a logic '1'. t = 0.56ms.

b The LSB is transmitted first as shown in Figure 27.

) - O Figure 27. Pulse distance modulation

Obsolete Product(s Figure 28. NEC protocol transmission waveforms

Doc ID 12324 Rev 2

27/39

Share Link: