Quectel FCM561D-P, Проектирование аппаратного обеспечения

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Wi-Fi&Bluetooth Module Series
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3.4. Application Interfaces
3.4.1. SPIs
In the case of multiplexing, the module integrates 2 SPIs that can operate in master or slave mode with
maximum clock frequency of 30 MHz. The SPIs support 8-bit or 16-bit data width and 4-wire or 3-wire
(without CS pin) mode.
Table 7: Pin Definition of SPIs
The following figure shows the connection between the host and the slave:
SPI_CS
SPI_CLK
SPI (Host)
SPI (Slave)
SPI_MOSI
SPI_MISO
SPI_MOSI
SPI_MISO
SPI_CS
SPI_CLK
Figure 2: SPI Connection
Pin Name Pin No. Multiplexing Function I/O Description Comment
GPIO14 61 SPI1_CLK DIO SPI1 clock
Other SPI1
configurations,
see Table 6 .
GPIO16 63 SPI1_CS DIO SPI1 chip select
GPIO15 62 SPI1_MOSI DIO SPI1 master-out slave-in
GPIO17 64 SPI1_MISO DIO SPI1 master-in slave-out
GPIO2 21 SPI2_CLK DIO SPI2 clock
GPIO3 20 SPI2_CS DIO SPI2 chip select
GPIO4 19 SPI2_MOSI DIO SPI2 master-out slave-in
GPIO5 18 SPI2_MISO DIO SPI2 master-in slave-out