Cirrus-logic CS8427 Manual do Utilizador descarregar pdf (Página 23)

CS8427

DS477F5 23

MSB LSB

MSB

LSB

MSB

ILRCK

ISCLK

SDIN

Channel A Channel B

Left

Justified

(In)

ILRCK

ISCLK

MSB LSB

MSB

LSB

Channel A

SDIN

MSB

Channel B

I²S

(In)

ILRCK

ISCLK

Channel A Channel B

MSB

SDIN

MSB LSBLSB

Right

Justified

(In)

Figure 15. Serial Audio Input Example Formats

X = don’t care to match format, but does need to be set to the desired setting

+ I²S can accept an arbitrary number of bits, determined by the number of ISCLK cycles

* See Serial Input Port Data Format Register Bit Descriptions for an explanation of the meaning of each bit

SIMS* SISF* SIRES*[1:0] SIJUST* SIDEL* SISPOL* SILRPOL*

Left Justified X X 00+ 0 0 0 0

I²S X X 00+ 0 1 0 1

Right Justified X X XX 1 0 0 0

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 59 60

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Cirrus-logic CS8427 Manual do Utilizador Página 23