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User’s Manual
ESM-2740/2743 User’s Manual
37
2.4.7 Signal Description – ETX Connector X3 (ETXC)
2.4.7.1 LVDS Flat Panel Interface Signals
Signal 1 Pixel / Clock LVDS Mode 2 Pixel / Clock LVDS Mode
LCDDO0 Txout0# Odd Txout0#
LCDDO1 Txout0 Odd Txout0
LCDDO2 Txout1# Odd Txout1#
LCDDO3 Txout1 Odd Txout1
LCDDO4 Txout2# Odd Txout2#
LCDDO5 Txout2 Odd Txout2
LCDDO6 Txclk# Odd Txclk#
LCDDO7 Txclk Odd Txclk
LCDDO8 Txout3# Odd Txout3#
LCDDO9 Txout3 Odd Txout3
LCDDO10 - Even Txout0#
LCDDO11 - Even Txout0
LCDDO12 - Even Txout1#
LCDDO13 - Even Txout1
LCDDO14 - Even Txout2#
LCDDO15 - Even Txout2
LCDDO16 - Even Txclk#
LCDDO17 - Even Txclk
LCDDO18 - Even Txout3#
LCDDO19 - Even Txout3
BIASON Controls panel contrast voltage.
DIGON Controls panel digital power.
ENBKL# Controls backlight power enable.
I
2
C_DAT, I
2
C_CLK
I
2
C interface for panel parameter EEPROM. This EERPOM is mounted on the
LVDS receiver. The data in the EEPROM allows the EXT module to automatically
set the proper timing parameters for a specific LCD panel.
2.4.7.2 IrDA (SIR) Signals
Signal Signal Description
IRTX, IRRX Infrared transmit and receive pins.
2.4.7.3 Parallel Port Signals
Signal Signal Description
STB# This active-low signal is used to strobe the printer data into the printer.
AFD#
This active-low output tells the printer to automatically feed the next single line
after each preceding line has been printed.
PD[0:7]
This bi-directional parallel data bus is used to transfer information between the
CPU and the peripherals.
ERR# This active-low signal indicates an error situation has occurred at the printer.
INIT# This active-low signal is used to initiate the printer when low.
SLIN# This active-low signal selects the printer.
ACK#
This active-low output from the printer indicates that it has received the previous
data and that it is ready to receive new data.