User's Manual

15
3.5 USB Port Connector
NOVA-7820 provides two USB ports (USB 1.1 compliant).
• CN35: USB 8-PIN HEADER
PIN Description
A1 VCC
A2 DATA0-
A3 DATA0+
A4 GROUND
B1 VCC
B2 DATA0-
B3 DATA0+
B4 GROUND
3.6 Serial Ports
NOVA-7820 offers four high speed NS16C550 compatible UARTs with
Read/Receive 16 byte FIFO in each serial port.
• CN8: D_SUB 9-PIN Connector
PIN Description
1 DATA CARRIER DETECT (DCD)
2 RECEIVE DATA (RXD)
3 TRANSMIT DATA (TXD)
4 DATA TERMINAL READY (DTR)
5 GROUND
6 DATA SET READY (DSR)
7 REQUEST TO SEND (RTS)
8 CLEAR TO SEND (CTS)
9 RING INDICATOR (RI)
• CN11: 10-pin Connector
PIN Description
1 DATA CARRIER DETECT (DCD)
2 RECEIVE DATA (RXD)
3 TRANSMIT DATA (TXD)
4 DATA TERMINAL READY (DTR)
5 GROUND
6 DATA SET READY (DSR)
7 REQUEST TO SEND (RTS)
8 CLEAR TO SEND (CTS)
9 RING INDICATOR (RI)
10 N/C