Detailed Device Info
Note: "SPI connector" is now referred to as "wireless add-on port"
I/O Pin Assignment
|
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 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 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 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 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 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 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 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 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 low. |
|
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). |
- This line is 5V-tolerant and can be interfaced to 5V CMOS devices directly.
- 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.
- This line can serve as a CTS, W0&1 input, or CLOCK input line of a serial port.
- 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 WA2000 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 WA2000 in by yourself or order the EM2000Nx device combination, in which case you will receive the EM2000 with the WA2000 installed (soldered in) on top of the module.
Additional Resources
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 (SSI Channels)
- Square Wave Generator
- Flash Memory and EEPROM
- Real-Time Clock (RTC)
- LED Lines
- External LCD Support
- External Keypad Support
- Power, Reset, PLL Control, and Mode Selection Lines