Uart Interface - Quectel AF51Y Hardware Design

PCM_CLK 37
PCM_DOUT 36
The following figure shows the PCM interface connection between AF51Y and the host.
AF51Y

3.6.3. UART Interface

Table 10: Pin Definition of UART Interface
Pin Name Pin No.
BT_RTS 77
BT_CTS 38
BT_TXD 39
BT_RXD 78
AF51Y_Hardware_Design
DI PCM clock
DO PCM data output
PCM_CLK
PCM_SYNC
PCM_DOUT
PCM_DIN
Figure 7: PCM Interface Connection
I/O Description
DO Bluetooth UART request to send
DI Bluetooth UART clear to send
DO Bluetooth UART transmit
DI Bluetooth UART receive
Wi-Fi&Bluetooth Module Series
1.8 V power domain
1.8 V power domain
PCM_CLK
PCM_SYNC
HOST
PCM_IN
PCM_OUT
Comment
1.8 V power domain
1.8 V power domain
1.8 V power domain
1.8 V power domain
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