Smart LTE Module Series
SC600Y&SC600T Hardware Design
SC600Y&SC600T_Hardware_Design 54 / 128
Table 11: USB Trace Length Inside the Module
Pin No.
Signal
Length (mm)
Length Difference (DP-DM)
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
3.10. UART Interfaces
The module provides the following four UART interfaces:
⚫
UART5:
4-wire UART interface, hardware flow control supported, 1.8V power domain
⚫
UART6:
4-wire UART interface, hardware flow control supported, multiplexed from SPI interface
⚫
UART2:
2-wire UART interface, used for debugging
⚫
UART4:
2-wire UART interface
The following table shows the pin definition of UART interfaces.
Table 12: Pin Definition of UART Interfaces
Pin Name
Pin No.
I/O
Description
Comment
UART2_TXD
5
DO
UART2 transmit data.
Debug port by default.
1.8V power domain.
If unused, keep these pins
open.
UART2_RXD
6
DI
UART2 receive data.
Debug port by default.
UART4_TXD
7
DO
UART4 transmit data
UART4_RXD
8
DI
UART4 receive data
UART5_RXD
198
DI
UART5 receive data
UART5_TXD
199
DO
UART5 transmit data
UART5_CTS
246
DI
UART5 clear to send
