WM5102 Datasheet, PDF (132/334 Pages) Wolfson Microelectronics plc – Audio Hub CODEC with Voice Processor DSP

WM5102
REGISTER
ADDRESS
R1408
(0580h)
AIF3
BCLK Ctrl
BIT
LABEL
4:0 AIF3_BCLK_FRE
Q [4:0]
DEFAULT
Production Data
DESCRIPTION
01100
AIF3BCLK Rate
00000 = Reserved
00001 = Reserved
00010 = 64kHz (58.8kHz)
00011 = 96kHz (88.2kHz)
00100 = 128kHz (117.6kHz)
00101 = 192kHz (176.4kHz)
00110 = 256kHz (235.2kHz)
00111 = 384kHz (352.8kHz)
01000 = 512kHz (470.4kHz)
01001 = 768kHz (705.6kHz)
01010 = 1.024MHz (940.8kHz)
01011 = 1.536MHz (1.4112MHz)
01100 = 2.048MHz (1.8816MHz)
01101 = 3.072MHz (2.8824MHz)
01110 = 4.096MHz (3.7632MHz)
01111 = 6.144MHz (5.6448MHz)
10000 = 8.192MHz (7.5264MHz)
10001 = 12.288MHz (11.2896MHz)
The frequencies in brackets apply for
44.1kHz-related sample rates only.
If AIF3_RATE<1000, then AIF3 is
referenced to SYSCLK and the 44.1kHz-
related frequencies apply if
SAMPLE_RATE_n = 01XXX.
If AIF3_RATE>=1000, then AIF3 is
referenced to ASYNCCLK and the
44.1kHz-related frequencies apply if
ASYNC_SAMPLE_RATE_n = 01XXX.
R1413
(0585h)
AIF3 Tx
BCLK
Rate
12:0 AIF3TX_BCPF
[12:0]
0040h
R1414
(0586h)
AIF3 Rx
BCLK
Rate
12:0 AIF3RX_BCPF
[12:0]
0040h
Table 37 AIF3 BCLK and LRCLK Control
The AIF3BCLK rate must be less than or
equal to SYSCLK/2, or ASYNCCLK/2, as
applicable.
AIF3TXLRCLK Rate
This register selects the number of BCLK
cycles per AIF3TXLRCLK frame.
AIF3TXLRCLK clock = AIF3BCLK /
AIF3TX_BCPF
Integer (LSB = 1), Valid from 8..8191
AIF3RXLRCLK Rate
This register selects the number of BCLK
cycles per AIF3RXLRCLK frame.
AIF3RXLRCLK clock = AIF3BCLK /
AIF3RX_BCPF
Integer (LSB = 1), Valid from 8..8191
The WM5102 performs automatic checks to confirm that each AIF is configured with valid settings.
Invalid settings include conditions where one or more audio channel timeslots are in conflict.
If an AIF1 configuration error, AIF2 configuration error or AIF3 configuration error is detected, this can
be indicated using the GPIO and/or Interrupt functions. See “General Purpose Input / Output” and
“Interrupts” for further details.
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PD, June 2014, Rev 4.2
132