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I2S Registers

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22.10.1.17 STMPWPER Register (Offset = 44h) [reset = X]

STMPWPER is shown in Figure 22-24 and described in Table 22-18.

WCLK Counter Period Value

Figure 22-24. STMPWPER Register

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

RESERVED VALUE

R-X R/W-X

Table 22-18. STMPWPER Register Field Descriptions

Bit Field Type Reset Description

31-16 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.

15-0 VALUE R/W X

Used to define when STMPWCNT is to be reset so number of WCLK

edges are found for the size of the sample buffer. This is thus a

modulo value for the WCLK counter. This number should correspond

to the size of the sample buffer used by the system (i.e. the index of

the last sample plus 1).

1440

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

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