User manual

(Connector Pin Description continued)
Mnemonic Description Type Pin on
X21
Pin on
X22
DRXD Debug UART Receive (Console Port) I 11
DTXD Debug UART Transmit (Console Port) O 12
RXD0 USART #0 Receive I 9
TXD0 USART #0 Transmit O 6
SCK1 USART #1 Clock I/O 3
CTS1 USART #1 CTS I 8
DCD1 USART #1 DCD I 9
DSR1 USART #1 DSR I 2
DTR1 USART #1 DTR O 6
RI1 USART #1 RI I 3
RTS1 USART #1 RTS I 7
RXD1 USART #1 Receive I 4
TXD1 USART #1 Transmit O 5
SCK2 USART #2 Clock I/O 2
CTS2 USART #2 CTS I 8
RTS2 USART #2 RTS I 7
RXD2 USART #2 Receive I 4
TXD2 USART #2 Transmit O 5
USB D- USB Device Port Data - Analog I/O 25
USB D+ USB Device Port Data + Analog I/O 26
USB_CNX USB Device V
BUS
(5V) Monitoring Input 27
USB HA- USB Host Port A Data - Analog I/O 21
USB HA+ USB Host Port A Data + Analog I/O 22
USB HB- USB Host Port B Data - Analog I/O 23
USB HB+ USB Host Port B Data + Analog I/O 24