Connector C - Elatec TWN4 MultiTech Core Manual

3 Connectors

3.3 Connector C

Pin Pin Name
C1 GND
C2 ANT_HF
C3 ANT_LF1
C4 ANT_LF2
C5 Res.
C6 SPK+
C7 IO0
C8 IO1
C9 IO2
C10 IO3
C11 IO4
C12 IO5
C13 IO6
C14 IO7
C15 SAM1_CLK
C16 GND
C17 SAM1_IO
C18 SAM1_RST
C19 SAM2_CLK
C20 GND
C21 SAM2_IO
C22 SAM2_RST
Function
Ground
Together with pin C1, this pin builds a 50 ohm output for
connecting external 13.56MHz antennas
Output 1 for connecting external 125 kHz / 134.2 kHz anten-
nas.
Output 2 for connecting external 125 kHz / 134.2 kHz anten-
nas.
This pin is reserved for future purposes.
Digitally modulated output for a speaker. Second connection
for the speaker is ground. The impedance of the speaker
should be greater than 24 ohm.
GPIO0, I/O pin for general purposes.
GPIO1, I/O pin for general purposes.
GPIO2, I/O pin for general purposes.
GPIO3, I/O pin for general purposes.
GPIO4, I/O pin for general purposes.
GPIO5, I/O pin for general purposes.
GPIO6, I/O pin for general purposes.
GPIO7, I/O pin for general purposes.
Clock output for SAM1
Ground
I/O line for SAM1
Reset output for SAM1
Clock output for SAM2
Ground
I/O line for SAM2
Reset output for SAM2
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