STFPC320 datasheet(34/78 Pages) STMICROELECTRONICS

34 / 78 page

Commands

STFPC320

34/78

The first byte after the configuration command is in the following format:

Figure 14.

First byte format after configuration byte

When b7 = ‘0’, incoming RC data is output on SDA in decoded format where the Device

Address, Start Bit, Toggle Bit and Data Bits are sent. Note that the default location is 0x00

for the first device address. This order of the bits sent is in the same format as the incoming

RC data.

When b7 = ‘1’, incoming raw data (no header information) is output on SDA.Address

decoding is still performed to decode the corresponding RC protocol. The format of the data

on SDA corresponds to the format of the respective RC frame.

For details, refer to the RC protocol section of the datasheet.

Upon power application, the following modes are selected:

●

Normal display setting: 16-digit, 12-segment mode is selected (default: display off and

keyscan on).

●

Remote control protocol setting: RC-5 with raw format.

●

Guard timer setting: turned on with 10s. After the first command is processed by

STFPC320, the guard timer is turned off until it is turned on by the host.

●

Guard timer action: issue standby.

MSB

LSB

GUARD TIMER SETTING

0000 : Turned off

0001 : 1 seconds

1111 : 15 seconds

xxxx : No. of seconds in BCD

format

REMOTE CONTROL PROTOCOL

SETTING

(Decoded format since b7=‘0’)

0000 : RC Disable

0010 : RC-5

0011 : Reserved

0100 : NEC

0110 : R2000

0111 : RCA

0101 : Sony

0001: Matsushita

MSB

LSB

GUARD TIMER SETTING

0000 : Turned off

0001 : 1 seconds

1111 : 15 seconds

xxxx : No. of seconds in BCD

format

REMOTE CONTROL PROTOCOL

SETTING

(Decoded format since b7=‘0’)

0000 : RC Disable

0010 : RC-5

0011 : Reserved

0100 : NEC

MSB

LSB

GUARD TIMER SETTING

0000 : Turned off

0001 : 1 seconds

1111 : 15 seconds

xxxx : No. of seconds in BCD

format

REMOTE CONTROL PROTOCOL

SETTING

(Decoded format since b7=‘0’)

0000 : RC Disable

0010 : RC-5

0011 : Reserved

0100 : NEC

0110 : R2000

0111 : RCA

0101 : Sony

0001: Matsushita

STFPC320 Datasheet(PDF) 34 Page - STMicroelectronics

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