ETX-CN700
Appendix 1
Page | 36
2
nd
LVDS2#
Txout2
second
2
nd
LVDS3#
Txout3#
second
2
nd
LVDS3#
Txout3
second
2
nd
LVDSCLK#
Txclock#
second
2
nd
LVDSCLK
Txclock
second
BIASON
Controls panel contrast voltage.
DIGON
Controls panel digital power.
BLON#
Controls back-light power.
LTGIO0
General purpose I/O pin.
I2CLK, I2DAT
I2C interface for panel parameter EEPROM. This EEPROM is mounted on the LVDS receiver. The data in the
EEPROM allows the ETX module to automatically set the proper timing parameters for a specific LCD panel.
DETECT#
Panel hot-plug detection. Implementation of this pin is optional. See the specific ETX module product manual
for details.
LCD Interface Signals
NOTE
: ETX modules may implement either this parallel interface or the LVDS flat panel interface described
above. This pin implementation depends on which BCT-ETX-C3 variant is being used ie LVDS or LCD
R[0..5], G[0..5], B[0..5]
Parallel digital signals for red, green and blue pixel data.
LP( Line/Latch Pulse)
Horizontal Sync: This output supplies the horizontal synchronisation pulse for flat panels.
FLM ( First Lime Marker)
This output supplies the vertical synchronisation pulse for flat panels.
DE
Data enable signal. Usage depends on display type.
SHCLK
Panel data clock signal.
DETECT#
Panel hot-plug detection.
Serial Port Signals
Note: that all serial port signals on the ETX module connectors are logic level signals. External transceiver
devices are necessary for the conversion of the logic level signals to the desired physical interface such as
RS232, RS422, or RS485.
DTR1#, DTR2#
Active-low data terminal ready outputs for the serial port. Handshake output signal notifies the modem that the
UART is ready to establish a data communication link.
RI1#, RI2#
Active-low input is for the serial port. Handshake signals notify the UART when a telephone ring signal is
detected by the modem.
TXD1, TXD2
Transmitter serial data output from serial port.
RXD1, RXD2
Receiver serial data input.
CTS1#, CTS2#
Active-low input for serial ports. Handshake signals notify the UART when the modem is ready to receive data.
RTS1#, RTS2#
Active-low output for serial port. Handshake signals notify the modem when the UART is ready to transmit
data.
DCD1#, DCD2#
Active-low input for serial port. Handshake signals notify the UART when a carrier signal is
detected by the modem.