STFPC320 STMicroelectronics, STFPC320 Datasheet - Page 48

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

Remote control protocols
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15.1
15.2
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Remote control protocols
Decoded and RAW formats
The main difference between decoded and raw remote-control format is that for decoded
format, the STFPC320 will send the RC data only from RC Device Address matches 0 of the
remote control protocol being used. Whereas for Raw format, the RC data is sent by
STFPC320 from any device address of the particular remote control protocol being used.
If the STFPC320 is used to send RC data in decoded format in normal mode, it is advised
that the Host must configure the STFPC320 to RC-raw format before entering Standby
mode. This is to allow wake-up from multiple remote control device addresses of the remote
control protocol (depending on the configuration as outlined in
the decoded RC format, STFPC320 will wake up the system from a single Device address.
Sending IR data on I
The IR data is sent on the SDA pin of the I2C interface when the micro-processor issues an
IR data read command (0x62,
sent in the decoded format or the raw format depending on the user configuration.
In general, the data is sent on SDA pin in byte format with MSB transmitted first as shown in
the Figure below:
Data word
MSB
Byte 1
2
Section 7.2: Data setting command on page
C interface
LSB MSB
Byte 2
LSB MSB
Section : on page
Byte 3
LSB
33). The data is
STFPC320
37) . In