STFPC320 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

STFPC320

Front panel controller/driver with standby power management and real-time clock

STMicroelectronics 

STFPC320

Remote control protocols

15.4.1

NEC in decoded format

In the decoded form, the ADR bits followed by Start bit and Toggle Bit followed by Data bits

are sent in this order for each remote control protocol. The number of bits depends on the

corresponding RC protocol. The remaining empty bits are stuffed with 1’s to complete a

byte-aligned data frame.

Example for NEC protocol, if the 8-bit ADDR field is “00000010” and 8-bit command is

“00011111”, the in decoded format the data on SDA pin will be sent as follows with MSB

transmitted first.

Figure 32. NEC data structure in decoded format

MSB

ADR

LSB

Byte 1

Byte 2

00000010

MSB

DATA

ST 0 0 0 1 1 1

LSB

Byte 3

1 1XXXXXX

15.4.2

NEC in RAW format

In the raw form, the data is sent in the same way as it is received for each RC protocol

except that the header is not transmitted on SDA. So for the above example for Philips RC-5

protocol, the data on SDA pin in raw-format will be as follows:

Figure 33. NEC data structure in raw format

8-bit Address

Inverted 8-bit

address

8-bit command

Inverted 8-bit

command

LSB

MSB LSB

MSB LSB

MSB LSB

MSB

Sent first on SDA

55/78

Share Link: