STA016 datasheet(19/43 Pages) STMICROELECTRONICS

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STA016A

the output crossbar according following table

Table 13. .

6.5 GPSO_CONFIGURATION registers

description

6.5.1

OUTPUT_CONF :

Address : 0x66 (102)

Type : RW - DEC

Software Reset : 0

Description

Table 14. :

Note that embedded default configuration for GPSO

can be retrieved by user thanks to following setting :

– GPSO_CONF = b00000011;

Note that embedded default configuration for PCM

block is described at previous chapter.

6.5.2

GPSO_CONF :

Address : 0x6A (106)

Type : RW - DEC

Software Reset : 0

Description :

If OUTPUT_CONF == 1, this register configure the

GPSO interface

Table 15. .

6.6 I2Sin_CONFIGURATION registers

description

6.6.1

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 config-

urability 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;

CR1

CR0

Comment

Left channel is mapped on the left

output.

Right channel is mapped on the right

output.

Left channel is duplicated on both output

channels.

Right channel is duplicated on both

output channels.

Right and left channels are toggled.

0C2

OC1

OC0

Bit fields

Comment

OC0

Configuration of gpso :

0 : take embedded default configuration.

1 : configure gpso from register

GPSO_CONF.

OC1

Use of block PCM to generate clocks

(PCMCK, LRCK & BCK):

0 : no use.

1 : use it.

OC2

Configuration of PCM block:

0 : take embedded default configuration.

1 : configure PCM block from PCM_DIV

& PCM_CONF registers.

CF7

CF6

CF5

CF4

CF3

CF2

CF1

CF0

Bit

fields

Comment

CF0

Polarity of GPSO_CK :

0 : data provided on rising edge & stable on

falling edge

1 : data provided on falling edge & stable on

rising edge

CF1

Polarity of GPSO_REQ :

0 : data are valid when GPSO_REQ is high

1 : data are valid when GPSO_REQ is low

CF[7:2]

Reserved : to be set to 0.

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