Smart Module Series
SC606T Series Hardware Design
SC606T_Series_Hardware_Design 46 / 116
Table 10: USB Trace Length Inside the Module
3.9. UART Interfaces
The module provides the following three UART interfaces:
⚫
UART2:
2-wire UART interface, used for debugging.
⚫
UART4:
2-wire UART interface.
⚫
UART5:
4-wire UART interface, hardware flow control supported.
Table 11: Pin Definition of UART Interfaces
UART5 is a 4-wire UART interface with 1.8 V power domain. A level translator chip should be used if your
Pin No.
Signal
Length (mm)
Length Difference (mm)
33
USB_DM
39.52
-0.45
32
USB_DP
39.07
171
USB_SS_RX_P
28.55
0.32
172
USB_SS_RX_M
28.23
174
USB_SS_TX_P
19.58
0.23
175
USB_SS_TX_M
19.35
Pin Name
Pin No.
I/O
Description
Comment
UART2_TXD
5
DO
UART2 transmit
1.8 V power domain.
Keep the unused of
these pins open.
UART2_RXD
6
DI
UART2 receive
UART4_TXD
7
DO
UART4 transmit
UART4_RXD
8
DI
UART4 receive
UART5_RXD
198
DI
UART5 receive
UART5_TXD
199
DO
UART5 transmit
UART5_CTS
246
DI
UART5 clear to send
UART5_RTS
245
DO
UART5 request to send