Data Sheet

Thundercomm Turbox
TM
SOM Datasheet
- 13 -
Pin Name
IO
Pin No.
instruction
NC
PI
205,206
USB_DM
AI
AO
209
USB2 high-speed data – minus
USB_DP
AI
AO
210
USB2 high-speed data –plus
USB_ID
AI
154
USB 2.0 for ID input
USB_SS_RX_P
AI
277
USB1 super-speed receive – plus
USB_SS_RX_M
AI
278
USB1 super-speed receive – minus
USB_SS_TX_P
AO
279
USB1 super-speed transmit – plus
USB_SS_TX_M
AO
280
USB1 super-speed transmit – minus
USB_SS_SEL
DO
120
USB Type-C switch control input
USBC_CC1
AI AO
163
USB Type-C connector configuration channel
USBC_CC2
AI AO
149
USB Type-C connector configuration channel
USB_VCONN
AI
158
Power input pin (5 V, 210 mA from VBUS) to
drive active cables during the DFP mode.
An internal mux connects VCONN power to
either CC1 or CC2 based on the cable
orientation.
 NOTE: Do not use Type-C. Float Pin: 163,149, and 158.
3.7. SDIO interface
The SOM provides one SDC interfaces and supports 1.8V or 3.0V power supply.
Table 2-9. Pin list for SDIO interface
Pin Name
IO
Pin No.
instruction
SDCARD_D1
IO
1
Data line bit 1
SDCARD_CMD
IO
2
Input and output command
SDCARD_D3
IO
18
Data line bit 3
SDCARD_D2
IO
19
Data line bit 2
SDCARD_D0
IO
20
Data line bit 0
SDCARD_CLK
DO
21
Clock signal
SD_DET_N
DI
233
card detection Configurable
VREG_L11_2P95
PO
251
Supply voltage 3.0V
3.8. UART interface
The SOM provides three UART interfaces, one of which is a 4-wire serial port.
 UART2 is a 2-wire serial port used for debug by default.
 UART4 is a 2-wire serial port reserved for users.
 UART5 is a 4-wire serial port reserved for users.