Cirrus-logic CS8420 Instrukcja Użytkownika Pobierz pdf (Strona 20)

20 DS245F4

CS8420

Figure 17. Serial Audio Input Example Formats

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)

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

* not 11 - See Serial Input Port Data Format Register Bit Descriptions for an explanation of the meaning of each bit

SIMS SISF SIRES1/0 SIJUST SIDEL SISPOL SILRPOL

Left-Justified X X 00 0 0 0 0

I²S XX00+0101

Right-Justified X X XX* 1 0 0 0

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 93 94

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Cirrus-logic CS8420 Instrukcja Użytkownika Strona 20