Wi-Fi&Bluetooth Module Series
FC41D-TE-B User Guide
FC41D-TE-B_User_Guide 18 / 24
3.6. Status Indication LEDs
FC41D-TE-B comprises nine status indication LEDs. The following figure shows the positions of these
LED indicators.
6
TXD
Connected directly to UART_RX of U201
7
RXD_M
Connected directly to MAIN_RX of FC41D
8
RXD
Connected directly to UART_TX of U201
9
SPI_CLK_M
Connected directly to SPI_CLK of FC41D
10
SPI_CLK
Connected directly to SPI_CLK of U302
J603
Pin No.
Pin Name
Description
1
SPI_MOSI_M
Connected directly to SPI_MOSI of FC41D
2
SPI_MOSI
Connected directly to SPI_MOSI of U302
3
SPI_CS_M
Connected directly to DBG_RX of FC41D
4
SPI_CS
Connected directly to UART_TX of U202
5
I2C_SCL_M
Connected directly to I2C_SCL of FC41D
6
I2C_SCL
Connected directly to I2C_SCL of U301
7
I2C_SDA_M
Connected directly to I2C_SDA of FC41D
8
I2C_SDA
Connected directly to I2C_SDA of U301
9
SPI_MISO_M
Connected directly to SPI_MISO of FC41D
10
SPI_MISO
Connected directly to SPI_MISO of U302