Hardware
FM0+ S6E1C-Series Starter Kit Guide, Doc. # 002-10542 Rev. *C
21
3.3.4 Stereo Codec
WM8731 is a low power stereo codec with an integrated headphone driver. On the digital side, it
has an Inter-IC Sound (I2S) interface which is connected with the I2S macro.
the details of the signals. It also has an I2C interface for configuring the device and an I2S
interface for audio data transmission. The I2C address for configuring the stereo codec is 0x1A.
On the analog side, the codec has headphone, microphone, line-in and line-out channel. On this
kit, only headphone and microphone are routed to jack, CN1.
Pin 7 is a multiplex pin which is connected to Pin 23 of the codec by a default closed wire jumper,
jp6. See
for details.
Table 3-3: I2S Interface
Pin No.
Port
Function
36
MI2SCK4_1
Bit clock out
37
MI2SDO4_1
Audio data out
38
MI2SDI4_1
Audio data in
35
MI2SWS4_1
Word select output pin
34
MI2SMCK4_1
Mast clock I/O pin
Figure 3-3: Stereo Codec Circuit
Summary of Contents for FM0+ S6E1C-Series
Page 49: ...Appendix FM0 S6E1C Series Starter Kit Guide Doc 002 10542 Rev C 49 Figure A 2 CMSIS DAP USB...
Page 50: ...Appendix FM0 S6E1C Series Starter Kit Guide Doc 002 10542 Rev C 50 Figure A 3 Stereo Codec...
Page 51: ...Appendix FM0 S6E1C Series Starter Kit Guide Doc 002 10542 Rev C 51 Figure A 4 Interfaces...
