Tibbo DS1100 - Ethernet Port Lines

100Embedded Modules
© Tibbo Technology Inc.
10
GPIO6
General-purpose I/O line 6.
11
GPIO1
General-purpose I/O line 1.
12
GPIO0
General-purpose I/O line 0.
13
VCC
Positive power input, 5V nominal, +/-
5%, max. current consumption 50mA
14
GND
System ground.
15
GPIO3/DTR
(1)
General-purpose I/O line 3;
conventionally also DTR output line of
the serial port.
16
GPIO2/DSR
(2)
General-purpose I/O line 2;
conventionally also DSR output line of
the serial port.
17
TX/W1out/dout
(1)
TX, W1, and dout output of the serial
port.
18
RX/W1in/din
(1)
RX, W1, and din input of the serial port.
19
GPIO4/CTS/W0&1in/cin
(1)
General-purpose I/O line 4; also CTS,
W0&1, and cin input of the serial port.
20
GPIO5/RTS/W0out/cout
(1)
General-purpose I/O line 5; also RTS,
W0, and cout output of the serial port.
21
SG
Green status LED control line.
22
SR
Red status LED control line.
23
RST
Reset line, active high.
24
MD
Mode selection pin.
4.7.1.1
Ethernet Port Lines
Ethernet port of the EM200 is of 100/10BaseT type. Onboard electronics of the
EM200 do not include Ethernet magnetics, so magnetic circuitry must be connected
externally. You can use either a standalone magnetics part (such as YCL-PH163112)
or RJ45 connector with integrated magnetics (for example, YCL-PTC1111-01G).
Drawings below show circuit diagrams for both parts.
Please, note the following: The Vout is an output that provides clean power for the
magnetics circuitry, which is very sensitive to noise. On EM200C-02 devices, this
pin outputs 3.3V; on EM200C-04 devices—1.8V.