Detailed Device Info

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em2000- pin assignment

Note: "SPI connector" is now referred to as "wireless add-on port"

 

See these topics for more information on various hardware facilities of the EM2000:

General-purpose I/O Lines

Wireless Add-on port, Wi-Fi Communications

Ethernet Port Lines

Serial Ports

Analog-to-digital Converter (ADC)

I2C/SPI Support (Serial Synchronous Interface Channels)

Square Wave Generator

Flash and EEPROM Memory

Real-time Clock (RTC)

LED Lines

External LCD Support

External Keypad Support

Power, Reset, PLL Control, and Mode Selection Lines

I/O pin assignment

Notes (refer to superscript numbers placed after pin #):

1.This line is 5V-tolerant and can be interfaced to 5V CMOS devices directly.

2.This line can be mapped to serve as an RTS, W0 output, or CLOCK output line of a serial port. The line can also be assigned to an I2C/SPI channel, or act as an interface line of the Wi-Fi add-on module, keypad, or an LED control channel.  

3.This line can serve as a CTS, W0&1 input, or CLOCK input line of a serial port.

4.This pin is on the wireless add-on port. EM2000-...-A devices have a connector header facing down (towards the host PCB). "-T" devices have a female connector facing up. Add-on modules, such as the GA1000 can be plugged into this female connector. Standard EM2000 devices only have the landing pads on the PCB, no connector is installed at the factory. You can solder the GA1000 in or order the EM2000G device combination, in which case you will receive the EM2000 with the GA1000 installed (soldered in) on top of the module.

 

Pin #

Function

Description

1 (1,2)

GPIO0/P0.0/RTS0

General-purpose I/O line 0 (P0.0).

2 (1,2)

GPIO1/P0.1/RTS1

General-purpose I/O line 1 (P0.1).

3 (1,2)

GPIO2/P0.2/RTS2

General-purpose I/O line 2 (P0.2).

4 (1,2)

GPIO3/P0.3/RTS3

General-purpose I/O line 3 (P0.3).

5 (1,2)

GPIO4/P0.4/DTR0

General-purpose I/O line 4 (P0.4).

6 (1,2)

GPIO5/P0.5/DTR1

General-purpose I/O line 5 (P0.5).

7 (1,2)

GPIO6/P0.6/DTR2

General-purpose I/O line 6 (P0.6).

8 (1,2)

GPIO7/P0.7/DTR3

General-purpose I/O line 7 (P0.7).

9 (1,2)

GPIO8/P1.0/RX0

General-purpose I/O line 8 (P1.0);

RX, W1 input, and DATA input of the serial port 0.

10 (1,2)

GPIO9/P1.1/TX0

General-purpose I/O line 9 (P1.1);

TX, W1 output, and DATA output of the serial port 0.

11 (1,2)

GPIO10/P1.2/RX1

General-purpose I/O line 10 (P1.2);

RX, W1 input, and DATA input of the serial port 1.

12 (1,2)

GPIO11/P1.3/TX1

General-purpose I/O line 11 (P1.3);

TX, W1 output, and DATA output of the serial port 1.

13 (1,2)

GPIO12/P1.4/RX2

General-purpose I/O line 12 (P1.4);

RX, W1 input, and DATA input of the serial port 2.

14 (1,2)

GPIO13/P1.5/TX2

General-purpose I/O line 13 (P1.5);

TX, W1 output, and DATA output of the serial port 2.

15 (1,2)

GPIO14/P1.6/RX3

General-purpose I/O line 14 (P1.6);

RX, W1 input, and DATA input of the serial port 3.

16 (1,2)

GPIO15/P1.7/TX3

General-purpose I/O line 15 (P1.7);

TX, W1 output, and DATA output of the serial port 3.

17 (1,2,3)

GPIO16/P2.0/INT0/CTS0

General-purpose I/O line 16 (P2.0);

interrupt line 0.

18 (1,2,3)

GPIO17/P2.1/INT1/CTS1

General-purpose I/O line 17 (P2.1);

interrupt line 1.

19 (1,2,3)

GPIO18/P2.2/INT2/CTS2

General-purpose I/O line 18 (P2.2);

interrupt line 2.

20 (1,2,3)

GPIO19/P2.3/INT3/CTS3

General-purpose I/O line 19 (P2.3);

interrupt line 3.

21 (1,2,3)

GPIO20/P2.4/INT4/DSR0

General-purpose I/O line 20 (P2.4);

interrupt line 4.

22 (1,2,3)

GPIO21/P2.5/INT5/DSR1

General-purpose I/O line 21 (P2.5);

interrupt line 5.

23 (1,2,3)

GPIO22/P2.6/INT6/DSR2

General-purpose I/O line 22 (P2.6);

interrupt line 6.

24 (1,2,3)

GPIO23/P2.7/INT7/DSR3

General-purpose I/O line 23 (P2.7);

interrupt line 7.

25 (1,2)

GPIO40/ADC0

General-purpose I/O line 40 (does not belong to any 8-bit port); ADC input 0.

26 (1,2)

GPIO41/ADC1

General-purpose I/O line 41 (does not belong to any 8-bit port); ADC input 1.

27 (1,2)

GPIO42/ADC2

General-purpose I/O line 42 (does not belong to any 8-bit port); ADC input 2.

28 (1,2)

GPIO43/ADC3

General-purpose I/O line 43 (does not belong to any 8-bit port); ADC input 3.

29

GND

System ground.

30 (1,2)

GPIO44

General-purpose I/O line 44 (does not belong to any 8-bit port).

31 (1,2)

GPIO25/P3.1

General-purpose I/O line 25 (P3.1).

32 (1,2)

GPIO24/P3.0

General-purpose I/O line 24 (P3.0).

33 (1,2)

GPIO27/P3.3

General-purpose I/O line 27 (P3.3).

34 (1,2)

GPIO26/P3.2

General-purpose I/O line 26 (P3.2).

35 (1,2)

GPIO29/P3.5

General-purpose I/O line 29 (P3.5).

36 (1,2)

GPIO28/P3.4

General-purpose I/O line 28 (P3.4).

37 (1,2)

GPIO31/P3.7

General-purpose I/O line 31 (P3.7).

38 (1,2)

GPIO30/P3.6

General-purpose I/O line 30 (P3.6).

39 (1,2)

GPIO33/P4.1

General-purpose I/O line 33 (P4.1).

40 (1,2)

GPIO32/P4.0

General-purpose I/O line 32 (P4.0).

41 (1,2)

GPIO35/P4.3

General-purpose I/O line 35 (P4.3).

42 (1,2)

GPIO34/P4.2

General-purpose I/O line 34 (P4.2).

43 (1,2)

GPIO37/P4.5

General-purpose I/O line 37 (P4.5).

44 (1,2)

GPIO36/P4.4

General-purpose I/O line 36 (P4.4).

45 (1,2)

GPIO39/P4.7

General-purpose I/O line 39 (P4.7).

46 (1,2)

GPIO38/P4.6

General-purpose I/O line 38 (P4.6).

47

MD

Mode selection pin.

48 (1,2)

GPIO55

General-purpose I/O line 55 (does not belong to any 8-bit port).

49

RST

Reset line, active high.

50 (1,2)

GPIO54

General-purpose I/O line 54 (does not belong to any 8-bit port).

51

SR

Red status LED control line.

52

SG

Green status LED control line.

53 (1,2)

GPIO46

General-purpose I/O line 46.

54 (1,2)

GPIO45/CO

General-purpose I/O line 45 (does not belong to any 8-bit port);

square wave output line.

55 (1,2)

GPIO48

General-purpose I/O line 48 (does not belong to any 8-bit port).

56 (1,2)

GPIO47

General-purpose I/O line 47 (does not belong to any 8-bit port).

57

DBGRX

RX line of debug serial port.

58

VCCB

Backup power for the real-time counter; connect directly to the backup power source (1.8-3.3V range).

59

DBGTX

TX line of debug serial port.

60

VCC

Positive power input, 3.3V nominal, +/- 5%, max. current consumption 100mA (100BaseT, full speed).

61

TX-

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

62

<N.C.>

Not connected.

63

TX+

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

64

EY

Yellow ("link") Ethernet status LED control line.

65

<N.C.>

Not connected.

66

EG

Green ("100mb") Ethernet status LED control line.

67

RX-

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

68

GND

System ground.

69

RX+

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

70

GND

System ground.

71 (4)

GND

Wireless add-on port, ground line.

72 (4)

VCC

Wireless add-on port,3.3V power line of the available on this pin. Do not connect to the power source. To avoid current loops, only use pin #60 to power the device.

73 (1,2,4)

GPIO49

Wireless add-on port, general-purpose I/O line 49 (does not belong to any 8-bit port).

74 (4)

<N.C.>

Leave this pin unconnected.

75 (1,2,4)

GPIO50

Wireless add-on port, general-purpose I/O line 50 (does not belong to any 8-bit port).

76 (4)

<N.C.>

Leave this pin unconnected.

77 (1,2,4)

GPIO51

Wireless add-on port, general-purpose I/O line 51 (does not belong to any 8-bit port).

78 (4)

<N.C.>

Leave this pin unconnected.

79 (1,2,4)

GPIO52

Wireless add-on port, general-purpose I/O line 52 (does not belong to any 8-bit port).

80 (1,2,4)

GPIO53

Wireless add-on port, general-purpose I/O line 53 (does not belong to any 8-bit port).