Product Info

Smart Module Series
SC200R Series Hardware Design
SC200R_Series_Hardware_Design 46 / 125
3.10. UART Interfaces
SC200R series module provides three UART interfaces and supports up to 4 Mbps:
 UART5: 4-wire UART interface, hardware flow control supported
 UART2 (debug UART): 2-wire UART interface, used for debugging by default
 UART1: 2-wire UART interface
Table 13: Pin Definition of UART Interfaces
UART5 is a 4-wire UART interface with 1.8 V power domain. You should use a level translator if your
application is equipped with a 3.3 V UART interface. The following figure shows the reference design.
Figure 13: Reference Circuit with Level Translator Chip (for UART5)
Pin Name Pin No. I/O Description Comment
UART5_TXD 34 DO UART5 transmit data
1.8 V power domain.
If not used, keep these pins
open.
UART5_RXD 35 DI UART5 receive data
UART5_CTS 36 DI UART5 clear to send
UART5_RTS 37 DO UART5 request to send
DBG_RXD 93 DI UART2 (debug UART) receive data
DBG_TXD 94 DO UART2 (debug UART) transmit data
UART1_RXD 153 DI UART1 receive data
UART1_TXD 154 DO UART1 transmit data