15
3.6 Serial
Ports
The ROCKY-3742EVFG offers two high speed NS16C550 compatible
UARTs with 16 byte Read/Receive FIFO serial ports.
CN9
: COM1
CN10
: COM2
•
CN9/CN10 : Serial Port 10-pin Connector
6 7 8 9 10
1 2 3 4 5
PIN NO.
DESCRIPTION
1
DATA CARRIER DETECT (DCD)
2
RECEIVE DATA (RXD)
3
TRANSMIT DATA (TXD)
4
DATA TERMINAL READY (DTR)
5
GROUND (GND)
6
DATA SET READY (DSR)
7
REQUEST TO SEND (RTS)
8
CLEAR TO SEND (CTS)
9
RING INDICATOR (RI)
10
N/C
3.7 Keyboard/Mouse Connector
The ROCKY-3742EVFG provide 6-pin DIN keyboard/mouse
connector and 5-pin keyboard connector..
•
CN14 : 6-pin DIN Keyboard/Mouse Connector
PIN NO.
DESCRIPTION
1 KEYBOARD
DATA
2 MOUSE
DATA
3 GROUND
4 +5V
5 KEYBOARD
CLOCK
6 MOUSE
CLOCK
•
CN13 : 5-pin External Keyboard Connector
16
5
4
3
2
1
PIN NO.
DESCRIPTION
1 KEYBOARD
CLOCK
2 KEYBOARD
DATA
3 NC
4 GROUND
5 +5V
3.8 IrDA Infrared Interface Port
The ROCKY-3742EVFG built in an IrDA port which supports
Serial Infrared(SIR) or Amplitude Shift Keyed IR(ASKIR)
interface. When you use the IrDA port, you have to set COM2
as SIR or ASKIR mode in the BIOS’s Peripheral Setup. Then
the RS-232 mode of COM2 will be disabled.
•
CN1 : IrDA connector
5 4 3 2 1
PIN NO.
DESCRIPTION
1 VCC
2 N/C
3 IR-RX
4 Ground
5 IR-TX
