STLED325 datasheet(44/62 Pages) STMICROELECTRONICS

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Commands

STLED325

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Doc ID 17576 Rev 1

001: Philips RC-6 (optional only enabled for Philips)

010: Philips RC-5

011: Philips RCMM

100: NEC

101: R-STEP

110: Thomson R2000

111: Thomson RCA

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.

GUARD TIMER SETTING (bits b3-b0)

0000: Turned off (guard timer disabled)

0001: 1 seconds

0010: 2 seconds

1111: 15 seconds

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

7-Segment display mode setting (bits b1-b0)

00: 1 digit, 8 segments (Digit 1 pin output is enabled)

01: 2 digits, 8 segments (Digit 1 and Digit 2 pin outputs are enabled)

10: 3 digits, 8 segments (Digit 1, Digit 2 and Digit 3 outputs are enabled)

11: 4 digits, 8 segments (Digit 1, Digit 2, Digit 3 and Digit 4 outputs are enabled)

b2: configuration for the digital outputs of the chip

b2 = 1 will enable the outputs of the chip to be push pull type to 1.8V

b2 = 0 will enable the outputs of the chip to be open-drain (can be externally pulled up to

3.3V)

b3: configuration for the GPIO0

MSB

LSB

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