RS232 serial port
Pin
Pin Definition
2 RXD1
3 TXD1
5 GND
7 RTS1
8 CTS1
1
、
4
、
6
、
9
NC
DBUG and RS485 multiplex serial port
Pin
Pin Definition
2 DTXD
3 DRXD
5 GND
7 TXD0
8 RXD0
1
、
4
、
6
、
9
NC
Interface for USB: two USB Host interface, one USB device interface.
USB Device interface synchronizes with PC, and USB Host interface supports USB keyboard, mouse, U-disk
and other devices.
USB Host interface
Pin
Signal Name
Pin
Signal Name
1 VBUS 5 VBUS
2 HDMA 6 HDMB
3 HDPA 7 HDPB
4 GND
USB Device interface
Pin
Signal Name
Pin
Signal Name
1 VBUS 3 DDP
2 DDM 4 GND
5
