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Table 11: Pin Definition of PCM Interface
Pin Name
Pin No.
PCM_DIN
44
PCM_SYNC
42
PCM_CLK
45
PCM_DOUT
43
The following figure shows the PCM interface connection between the module and the host.
3.7. Other Interfaces
3.7.1. WLAN_SLP_CLK
The 32.768 kHz clock is used in low power modes, such as IEEE power saving mode and sleep mode. It
serves as a timer in various power saving schemes, and to maintain basic logic operations when the
module is in sleep mode.
Figure and table below show the sleep clock reference input clock requirements.
FC64E_Hardware_Design
I/O
Description
DI
PCM data input
DI
PCM data frame sync
DI
PCM clock
DO
PCM data output
Figure 9: PCM Interface Connection
Wi-Fi&Bluetooth Module Series
Comment
1.8 V power domain.
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