wm8940gefl-v Wolfson Microelectronics plc, wm8940gefl-v Datasheet - Page 52
wm8940gefl-v
Manufacturer Part Number
wm8940gefl-v
Description
Mono Codec With Speaker Driver
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8940GEFL-V.pdf
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WM8940
w
In I
The other bits up to the LSB are then transmitted in order. Depending on word length, BCLK
frequency and sample rate, there may be unused BCLK cycles between the LSB of one sample and
the MSB of the next.
Figure 27 I
In DSP/PCM mode, the left channel MSB is available on either the 1
rising edge of BCLK (selectable by FRAMEP) following a rising edge of FRAME. Right channel data
immediately follows left channel data. Depending on word length, BCLK frequency and sample rate,
there may be unused BCLK cycles between the LSB of the right channel data and the next sample.
FRAMEP should be set to 0 in this mode.
Figure 28 DSP/PCM Mode Audio Interface (Mode A, FRAMEP=0)
Figure 26 Right Justified Audio Interface (assuming n-bit word length)
2
S mode, the MSB is available on the second rising edge of BCLK following a FRAME transition.
2
S Audio Interface (assuming n-bit word length)
st
(Mode B) the 2
PD, Rev 4.2, April 2008
Production Data
nd
(Mode A)
52
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