Detailed Device Info

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EM200- pin assignment

 

The information on various hardware faculties of the EM200 can be found in the following topics:

Ethernet Port Lines

Serial Port and General-purpose I/O Lines

Flash and EEPROM Memory

LED Lines

Power, Reset, and Mode Selection Lines

I/O pin assignment

Pin #

Function

Description

1

EG

Green Ethernet status LED control line.

2

EY

Yellow Ethernet status LED control line.

3

RX+

Ethernet port, positive line of the differential input signal pair.

4

RX-

Ethernet port, negative line of the differential input signal pair.

5

3.3Vout

"Clean" 3.3V power for magnetics circuitry.

6

TX+

Ethernet port, positive line of the differential output signal pair.

7

TX-

Ethernet port, negative line of the differential output signal pair.

8

GPIO8

General-purpose I/O line 8.

9

GPIO7

General-purpose I/O line 7.

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.