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Host Interface Connector
The following table lists the pin functions of the 12-pin host interface connector of the EM2096.
PIN#
Signal
1
NC
2
VDD
3
GND
4
RX
5
TX
6
USB_D-
7
USB_D+
8
NC
9
Buzz
10
LED
11
Reset
12
nTrig
Chapter 4 Interfaces
I/O
-
Not connected.
-
3.3V power supply.
-
Power-supply ground.
I
TTL level 232 receive data.
O
TTL level 232 transmit data.
I/O
USB D- differential data signal.
I/O
USB D+ differential data signal.
-
Not connected.
Beeper output. For the information of external beeper driver circuit,
O
see the Beeper section in this chapter.
Good Read LED output. For the information of external LED driver
O
circuit, see the Good Read LED section.
I
Reset signal input: Driving this pin low for 100us resets the engine.
Trigger signal input: Driving this pin low for 10ms causes the
I
EM2096 to start a scan and decode session.
Description
14
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