Detailed Device Info

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em1001-pin-assignment

 

See these topics for more information on various hardware facilities of the EM1001:

General-purpose I/O Lines

Wireless add-on port

Ethernet Port

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. Connected in parallel with the onboard MD button. Use an open collector circuit to control this line as pressing the MD button short-circuits the line onto the GND.

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. Also connected to the onboard LED. Maximum load on this line is 3mA. Use a buffer (logic gate) if higher current is desired.

52

SG

Green status LED control line. Also connected to the onboard LED. Maximum load on this line is 3mA. Use a buffer (logic gate) if higher current is desired.

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

3.3V

Output of the onboard 3.3V regulator. Can supply up to 1A of current to external devices (1.3A without the GA1000).

This line can also be used to power the EM1001. Use regulated 3.3V power source only!

59

DBGTX

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

60

VIN

Switching regulator supply voltage in the 8-20V range. The regulator generates 3.3V power for the onboard circuitry, GA1000, and external devices connected to the 3.3V line.

There is no need to use this input if the EM1001 is powered directly through the 3.3V line.

This line is also connected to the positive terminal on the power jack.

61 (4)

GND

System ground.

62 (4)

3.3V

3.3V power available on this pin. Do not connect to the power source.

63 (1,2,4)

GPIO49

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

64

---

No connection.

65 (1,2,4)

GPIO50

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

66

---

No connection.

67 (1,2,4)

GPIO51

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

68

---

No connection.

69 (1,2,4)

GPIO52

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

70 (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 connector.