User's Manual
WiFiModuleMWF‐5201
25 SPI_CS0 SPIchipselect0
26 SPI_CLK SPIclock
27 SPI_MOSI SPImasteroutslavein
28 3.3V 3.3VDCinputpin
LDO 29 SOD_1.8V Powersupplyto10/100transformer
30 GND Ground
C. J3PinDefinition
Description Pin Specification Notes
1 GND Ground
2 ANT1 WiFiAntennaconnector
AntennaPort
3 GND Ground
3. I/ODesignDefinition
Table1:GPIOsharescheme:
RXD2 GPIO#16
UART
TXD2 GPIO#15
RIN GPIO#14
DSR_N GPIO#13
DCD_N GPIO#12
DTR_N GPIO#11
RXD GPIO#10
CTS_N GPIO#9
TXD GPIO#8
UARTF
RTS_N GPIO#7
SPI_MISO GPIO#6
SPI_MOSI GPIO#5
SPI_CLK GPIO#4
SPI
SPI_CSO GPIO#3
I2C_SCLK GPIO#2
I2C
I2C_SD GPIO#1
GPIO GPIO0 GPIO#0
Table2:UARTpinsharescheme
Pin
Name
3’b000
UARTF
3’b001
PCM,
UARTF
3’b010
PCM,
I2S
3’b011
I2S
UARTF
3’b100
PCM,
GPIO
3’b101
GPIO
UARTF
3’b110
GPIO
I2S
3’b111
GPIO
RIN RIN PCMDTX PCMDTX RXD PCMDTX
GPIO#14 GPIO#14 GPIO#14
DSR_N DSR_N PCMDRX PCMDRX CTS_N PCMDRX
GPIO#13 GPIO#13 GPIO#13
DCD_N DCD_N PCMCLK PCMCLK TXD PCMCLK
GPIO#12 GPIO#12 GPIO#12
DTR_N DTR_N PCMFS PCMFS RTS_N PCMFS
GPIO#11 GPIO#11 GPIO#11
RXD RXD RXD I2SSDI I2SSDI
GPIO#10
RXD I2SSDI
GPIO#10
CTS_N CTS_N CTS_N I2SSDO I2SSDO
GPIO#9
CTS_N I2SSDO
GPIO#9
TXD TXD TXD I2SWS I2SWS
GPIO#8
TXD I2SWS
GPIO#8
RTS_N RTS_N RTS_N I2SCLK I2SCLK
GPIO#7
RTS_N I2SCLK
GPIO#7
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y, Hsinchu County 30265, Ta
iwan
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