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/-02: 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/-02: 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/-02: analog ground.

69

RX+

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

70

EM1000-...- 00: ---

EM1000-...- 01: AGND

EM1000-...-00: ---

EM1000-...-01/-02: 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).