User's Manual
Wi-Fi&Bluetooth Module Series
FC41D_Hardware_Design
21 / 46
The pin description of SPI interface is shown in the below table:
Tabel 8: SPI Pin Definition
The timing of SPI interface is shown in the figure below, and the timing parameters are shown in the table
below:
SPI_CS
SPI_CLK
SPI_MOSI
MSB
1 2
SPI_MISO
3
T
t(mov)
4
t(mis)
t(mih)
t(ch)
t(cl)
Figure 8: SPI Timing
Table 9: SPI Timing Parameters
Interface
Pin Name
Pin No.
Description
SPI
SPI_MISO
13
SPI master input slave output
SPI_MOSI
14
SPI master output slave input
SPI_CLK
17
SPI clock
SPI_CS
18
SPI chip selection
Parameter
Description
Min.
Typ.
Max.
Unit
T
SPI clock cycle
20.0
-
-
ns
t(ch)
SPI clock high level time
9.0
-
-
ns
t(cl)
SPI clock low time
9.0
-
-
ns
t(mov)
SPI valid time of master mode data output
-5.0
-
5.0
ns
t(mis)
SPI setup time of master mode data input
5.0
-
-
ns