Detailed Device Info

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 WA2000). 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, WA2000, 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:
- This line is 5V-tolerant and can be interfaced to 5V CMOS devices directly.
- 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).
- 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).
- This pin is on the wireless add-on connector.