Data Sheet

DOC No: WS2116-A0A-DTS-D03
____________________________________________________________________________________
Copyright © JORJIN TECHNOLOGIES INC. 2018 18
http://WWW.JORJIN.COM.TW
5. DESIGN RECOMMENDATIONS
5.1. GPIO Usage of BlueNRG-2
Because the function of some pins has been used in the module internally. The other functions of
these pins could not be defined. Please refer the below table.
Pin
Name
Mode “000”
Mode “001”
Mode “100”
Mode “101”
Note
Type
Signal
Type
Signal
Type
Signal
Type
Signal
DIO0
I/O
GPIO 0
I
UART_CTS
I/O
SPI_CLK
O
CPUCLK
To SCLK pin of S2-LP
DIO1
I/O
GPIO 1
O
UART_RTS
I/O
SPI_CS1
I
PDM_DATA
DIO2
I/O
GPIO 2
O
PWM0
O
SPI_OUT
O
PDM_CLK
To SDI pin of S2-LP
DIO3
I/O
GPIO 3
O
PWM1
I
SPI_IN
-
-
To SDO pin of S2-LP
DIO4
I/O
GPIO 4
I
UART_RXD
I/O
I2C2_CLK
O
PWM0
To SCL pin of STSAFE-A1SX
DIO5
I/O
GPIO 5
O
UART_TXD
I/O
I2C2_DAT
O
PWM1
To SDA pin of STSAFE-A1SX
DIO6
I/O
GPIO 6
O
UART_RTS
I/O
I2C2_CLK
I
PDM_DATA
To reset pin of STSAFE-A1SX
DIO7
I/O
GPIO 7
I
UART_CTS
I/O
I2C2_DAT
O
PDM_CLK
DIO8
I/O
GPIO 8
O
UART_TXD
I/O
SPI_CLK
I
PDM_DATA
DIO9
I/O
GPIO 9
I
SWCLK
I
SPI_IN
O
XO16/32M
DIO10
I/O
GPIO 10
I
SWDIO
O
SPI_OUT
O
CLK_32K
DIO11
I/O
GPIO 11
I
UART_RXD
I/O
SPI_CS1
O
CLK_32K
DIO12
OD
GPIO 12
I
-
I/O
I2C1_CLK
-
-
DIO13
OD
GPIO 13
I
UART_CTS
I/O
I2C1_DAT
-
-
DIO14
I/O
GPIO 14
I/O
I2C1_CLK
I/O
SPI_CLK
-
-
DIO15
I/O
GPIO 15
I/O
2C1_DAT
I/O
SPI_CS1
DIO16
I/O
GPIO 16
O
PWM0
I
SPI_IN
DIO17
I/O
GPIO 17
O
PWM1
O
SPI_OUT
DIO18
I/O
GPIO 18
O
SPI_CS2
O
UART_RTS
DIO19
I/O
GPIO 19
O
SPI_CS3
I
UART_CTS
To GPIO2 of S2-LP
DIO20
I/O
GPIO 20
I
UART_CTS
O
SPI_CS2
To CS pin of S2-LP
DIO21
I/O
GPIO 21
O
PWM1
I/O
SPI_CS1
To GPIO3 of S2-LP
DIO22
I/O
GPIO 22
O
PWM0
O
SPI_CS3
To CTX pin of SKY66420-11
DIO23
I/O
GPIO 23
O
UART_TXD
O
SPI_OUT
O
PDM_CLK
To CPS pin of SKY66420-11
DIO24
I/O
GPIO 24
I
UART_RXD
I
SPI_IN
I
PDM_DATA
To CSD pin of SKY66420-11
DIO25
I/O
GPIO 25
O
UART_RTS
I/O
SPI_CLK
O
PDM_CLK
To SDN pin of S2-LP