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I2S Registers

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22.10.1.1 AIFWCLKSRC Register (Offset = 0h) [reset = X]

AIFWCLKSRC is shown in Figure 22-8 and described in Table 22-2.

WCLK Source Selection

Figure 22-8. AIFWCLKSRC Register

31 30 29 28 27 26 25 24

RESERVED

R-X

23 22 21 20 19 18 17 16

RESERVED

R-X

15 14 13 12 11 10 9 8

RESERVED

R-X

7 6 5 4 3 2 1 0

RESERVED WCLK_INV WCLK_SRC

R-X R/W-X R/W-X

Table 22-2. AIFWCLKSRC Register Field Descriptions

Bit Field Type Reset Description

31-3 RESERVED R X

Software should not rely on the value of a reserved. Writing any

other value than the reset value may result in undefined behavior.

2 WCLK_INV R/W X

Inverts WCLK source (pad or internal) when set. 0: Not inverted 1:

Inverted

1-0 WCLK_SRC R/W X

Selects WCLK source for AIF (should be the same as the BCLK

source). The BCLK source is defined in the

PRCM:I2SBCLKSEL.SRC

0h = None ('0')

1h = External WCLK generator, from pad

2h = Internal WCLK generator, from module PRCM/ClkCtrl

3h = Not supported. Will give same WCLK as 'NONE' ('00')

1424

Integrated Interchip Sound (I2S) Module SWCU117A–February 2015–Revised March 2015

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