STA027 datasheet(26/44 Pages) STMICROELECTRONICS

номер детали	STA027

подробное описание детали	SBC CODEC

PDF	44 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

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5 Register description

STA027

26/44

CD00066274

5.6

I2Sin_CONFIGURATION registers description

5.6.1

INPUT_CONF :

Address : 0x5A (90)

Type : RW - DEC

Software Reset : 0

Description :

If set to 1 enable the configurability of the I2Sin Input thanks to following registers, else disable

this configurability and take embedded default configuration for I2Sin registers.

Note that this embedded default configuration can be retrieved by user thanks to following

setting :

–

I_AUDIO_CONFIG_1 = b00000110;

–

I_AUDIO_CONFIG_2 = b11100000;

–

I_AUDIO_CONFIG_3 = b00000001;

5.6.2

I_AUDIO_CONFIG_1:

Address : 0x5B (91)

Type : RW - DEC

Software Reset : 0

Description :

If INPUT_CONF == 1, this register configure the I2Sin interface.

CF7

CF6

CF5

CF4

CF3

CF2

CF1

CF0

Table 14.

Bit fields

Comment

CF0

Relative synchro :

0 : synchro with first data bit

1 : synchro one bit before first data bit

CF1

Data reception configuration :

0 : LSB first

1 : MSB first

CF2

Polarity of bit clock BCK :

0 : data provided on falling edge & stable on rising edge.

1 : data provided on rising edge & stable on falling edge

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