ETX-945 User Manual 1.02
www.diamondsystems.com
Page 23
4.3.3
LCD interface
These pins carry data for graphical display on an LCD panel, as indicated.
Signal Name
Signal Function
Direction
BIASON
Controls display contrast voltage
Out
DIGON
Controls digital power to LCD
Out
BLON#
Controls backlight power to LCD
Out
LCD0-LCD19
LVDS channel data 0-19
Out
DETECT#
Panel hot-plug detection
In
FPDDC_CLK DDC
DDC signals for flat panel detection and control
Out
FPDDC_DAT DDC
DDC signals for flat panel detection and control
In/Out
4.3.4
Serial port interfaces
These pins carry data and control information to/from
the board’s two serial ports, as indicated. These pins
provide logic-level signaling, and require external I/O buffering if RS-232, RS-422, or RS-485 signaling is desired.
Signal Name
Signal Function
Direction
DTR1#, DTR2#
Data terminal ready outputs from serial ports 1 and 2
Out
RI1#, RI2#
Ring indicator inputs for serial ports 1 and 2
In
TXD1, TXD2
Transmit data outputs from serial ports 1 and 2
Out
RXD1, RXD2
Receive data inputs for serial ports 1 and 2
In
CTS1#, CTS2#
Clear to send signal inputs for serial ports 1 and 2
In
RTS1#, RTS2#
Request to send outputs from serial ports 1 and 2
Out
DCD1#, DCD2#
Data carrier detected inputs for serial ports 1 and 2
In
DSR1#, DSR2#
Data set ready inputs for serial ports 1 and 2
In
