User manual

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 10/100Mbps Ethernet interface (RJ45 connector)
 High-speed USB 2.0 OTG interface with PHY (480Mbps mini-USB
interface)
 Four high-speed USB 2.0 HOST interfaces with PHY (480Mbps
USB-A interface)
 SD card slot (compatible with SD/MMC communication)
 Serial Interfaces:
Interfaces
Descriptions
UART1
5-wire, RS232 voltage level, DB9 debugging serial interface
UART2
3-wire, TTL voltage level, 6-pin connector
UART3
5-wire, TTL voltage level, 6-pin connector
Input Interfaces:
 BOOT button
 Reset button
LED indicators:
 Power indicator
 Two custom user indicators