Detailed Device Info

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em1000- pin assignment v2

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

 

See these topics for more information on various hardware facilities of the EM1000:

General-purpose I/O Lines

Wireless Add-on port

Ethernet Port Lines

Serial Ports

Square Wave Generator

Flash and EEPROM Memory

Real-time Counter

LED Lines

Power, Reset, PLL Control, and Mode Selection Lines

I/O pin assignment

 

Pin #

Function

Description

1 (1,2)

GPIO0/P0.0

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

2 (1,2)

GPIO1/P0.1

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

3 (1,2)

GPIO2/P0.2

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

4 (1,2)

GPIO3/P0.3

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

5 (1,2)

GPIO4/P0.4

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

6 (1,2)

GPIO5/P0.5

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

7 (1,2)

GPIO6/P0.6

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

8 (1,2)

GPIO7/P0.7

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, and din input of the serial port 0.

10 (1,2)

GPIO9/P1.1/TX0

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

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

11 (1,2)

GPIO10/P1.2/RX1

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

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

12 (1,2)

GPIO11/P1.3/TX1

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

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

13 (1,2)

GPIO12/P1.4/RX2

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

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

14 (1,2)

GPIO13/P1.5/TX2

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

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

15 (1,2)

GPIO14/P1.6/RX3

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

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

16 (1,2)

GPIO15/P1.7/TX3

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

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

17 (1,2,3)

GPIO16/P2.0/INT0

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

interrupt line 0.

18 (1,2,3)

GPIO17/P2.1/INT1

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

interrupt line 1.

19 (1,2,3)

GPIO18/P2.2/INT2

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

interrupt line 2.

20 (1,2,3)

GPIO19/P2.3/INT3

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

interrupt line 3.

21 (1,2,3)

GPIO20/P2.4/INT4

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

interrupt line 4.

22 (1,2,3)

GPIO21/P2.5/INT5

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

interrupt line 5.

23 (1,2,3)

GPIO22/P2.6/INT6

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

interrupt line 6.

24 (1,2,3)

GPIO23/P2.7/INT7

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

interrupt line 7.

25 (1,2)

GPIO40

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

26 (1,2)

GPIO41

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

27 (1,2)

GPIO42

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

28 (1,2)

GPIO43

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

29

GND

System ground.

30 (1,2)

GPIO44

General-purpose I/O line 44.

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

<TEST PIN>

Leave this pin unconnected.

49

RST

Reset line, active high.

50

PM

PLL control line (HIGH- PLL ON, LOW- PLL OFF).

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 (details to be published).

58

VCCB

Backup power for the real-time counter; connect to 3.3V through a 50 Ohm resistor.

59

DBGTX

TX line of debug serial port (details to be published).

60

VCC

Positive power input, 3.3V nominal, +/- 5%, max. current consumption 230mA (100BaseT, PLL on).

61

TX-

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

62

AVCC

"Clean" power output for magnetics circuitry:

EM1000-...- 00: 3.3V (not in production)

EM1000-...- 01: 2.5V (currently in production).

63

TX+

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

64

EY

Yellow Ethernet status LED control line.

65

EM1000-...- 00: ---

EM1000-...- 01: SCAP

EM1000-...- 00: ---

EM1000-...- 01: external supercapacitor input.

66

EG

Green Ethernet status LED control line.

67

RX-

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

68

EM1000-...- 00: ---

EM1000-...- 01: AGND

EM1000-...- 00: ---

EM1000-...- 01: analog ground.

69

RX+

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

70

EM1000-...- 00: ---

EM1000-...- 01: AGND

EM1000-...- 00: ---

EM1000-...- 01: analog ground.

71 (4)

GND

System ground.

72 (4)

VCC

3.3V power 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

General-purpose I/O line 49 (does not belong to any 8-bit port).

74 (4,5)

SPIDI

SPI, data in [no longer in use].

75 (1,2,4)

GPIO50

General-purpose I/O line 50 (does not belong to any 8-bit port).

76 (4,5)

SPIDO

SPI, data out [no longer in use].

77 (1,2,4)

GPIO51

General-purpose I/O line 51 (does not belong to any 8-bit port).

78 (1,2,4,5)

SPICLK

SPI, clock line [no longer in use].

79 (1,2,4)

GPIO52

General-purpose I/O line 52 (does not belong to any 8-bit port).

80 (1,2,4)

GPIO53

General-purpose I/O line 53 (does not belong to any 8-bit port).

 

Notes:

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/Wout/cout line of a serial port (provided that this does not interfere with any other function).

3.This line can serve as a CTS/W0&1in/cin line of a serial port (provided that this does not interfere with any other function).

4.This pin is on the wireless add-on port (formerly known as "SPI port"). "-A" option device modification has the connector header soldered in and "available" to the host PCB. "T" option devices have a female connector. Other EM1000 versions do not have any connector installed.

5.The SPI lines are no longer used. Our current wireless add-on modules, such as the GA1000, rely on GPIO49~53 for communicating with add-on devices. SPIDI, SPIDO, and SPOCLK lines should never be connector to.