Realtimes Beijing Technology Co.,LTD
Manual for RTSO-9001 V2.0
24
4.13 Dip switch interface
（
SW2
）
Function
Multifunction select dial - code switch
The board
level
RTSO-9001B
（
The lower plate
）
Marking
SW2
Type
8-bit multifunction dial code switch
Pin define
For serial port function options, see serial port details (4.14 serial
port).
USB OTG enabled: it needs to be turned on when burning the
system. (ID line ON is grounded, OFF is suspended)
Dial
the
code
bit
function
BIT1
Serial port function selection
BIT2
Serial port function selection
BIT3
Serial port function selection
BIT4
Serial port 0 receives matching resistors
BIT5
Serial port 0 sends matching resistors
BIT6
Serial port 1 receives matching resistors
BIT7
USB OTG feature enabled
BIT8
Serial port 1 sends matching resistors
