EnOcean TCM 300C User manual

USER MANUAL
EnOcean GmbH
Kolpingring 18a
82041 Oberhaching
Germany
Phone [phone]
Fax [phone]
[email protected]
www.enocean.com
Subject to modifications
TCM 300 / TCM 320 User Manual 10
June 7th, 2013
Page 1/54
Patent protected:
WO98/36395, DE 100 25 561, DE 101 50 128,
WO 2004/051591, DE 103 01 678 A1, DE 10309334,
WO 04/109236, WO 05/096482, WO 02/095707,
US 6,747,573, US 7,019,241
Observe precautions! Electrostatic sensitive devices!
Transceiver Module
TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
June 7th, 2013

USER MANUAL
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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
REVISION HISTORY
The following major modifications and improvements have been made to the first version of
this document:
No
Major Changes
1.01
Tape running direction added in 3.8
1.02
Dimension of TCM 320 corrected (width 18 mm instead of 19 mm)
1.03
Editorial changes
1.10
Timing information regarding serial protocol added in A.2, A.3. 0xFFFF_FFFF ex-
cluded from usable ID range, because this ID will be used as broadcast ID.
1.20
Error corrected in 3.2.1. and 4.1: Maximum gain of external antenna at 50 Ohm
output RF_50 is 0 dBi! Error corrected in 2.2: WXODIO is configured as output and
provides information on VON signal
1.21
Note added in 3.5
1.25
Remarks added regarding use of IOVDD in 2.2.; Antenna specification in 3.3.1 ex-
tended. Updated information on conducted output power in 1.2; A.2.2 changed to
point to EnOcean Alliance Website; A.2.3 and A.2.4 removed; editorial changes
1.26
Start-up time added in 1.2; Layout recommendations improved in 3.6
1.27
Antenna recommendations removed and referred to application note AN102 and
AN105; Maximum Rating for IOVDD modified (IOVDD may now exceed VDD);
Chapter “Related Documents” added; figure added in 3.2.1; parameters for anten-
na requirements relaxed in 4.2.1.; pin numbers added in 3.2; Update of FCC
grants in 5.2; TCM 320 drawing modified in 2.3.
1.29
New module variants for 902.875 MHz
1.30
Several Changes to meet FCC and IC manual requirements for Limited Modular
Approval
1.31
Mitsubishi Materials Chip Antenna added to limited modular approval
Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany
www.enocean.com, [e-mail], phone [phone]
© EnOcean GmbH
All Rights Reserved
Important!
This information describes the type of component and shall not be considered as assured characteris-
tics. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications
are subject to change without notice. For the latest product specifications, refer to the EnOcean web-
site: http://www.enocean.com.
As far as patents or other rights of third parties are concerned, liability is only assumed for modules,
not for the described applications, processes and circuits.
EnOcean does not assume responsibility for use of modules described and limits its liability to the
replacement of modules determined to be defective due to workmanship. Devices or systems contain-
ing RF components must meet the essential requirements of the local legal authorities.
The modules must not be used in any relation with equipment that supports, directly or indirectly,
human health or life or with applications that can result in danger for people, animals or real value.
Components of the modules are considered and should be disposed of as hazardous waste. Local
government regulations are to be observed.
Packing: Please use the recycling operators known to you.

USER MANUAL
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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
TABLE OF CONTENT
1MODULE VARIANTS AND RELATED DOCUMENTS ...............................................5
2GENERAL DESCRIPTION .................................................................................6
2.1 Basic functionality .........................................................................................6
2.2 Technical data TCM 300 / TCM 320 (868.300 MHz) ............................................7
2.3 Technical data TCM 300C / TCM 320C (315.000 MHz) ........................................8
2.4 Technical data TCM 300U/ TCM 320U (902.875 MHz) .........................................8
2.5 Physical dimensions TCM 300x ........................................................................9
2.6 Physical dimensions TCM 320x ........................................................................9
2.7 Environmental conditions ............................................................................. 10
2.8 Ordering information.................................................................................... 10
3FUNCTIONAL DESCRIPTION .......................................................................... 11
3.1 Pin out ....................................................................................................... 11
3.2 Pin description and operational characteristics................................................. 12
3.2.1 GPIO supply voltage - IOVDD.................................................................... 14
3.3 Absolute maximum ratings (non operating) .................................................... 15
3.4 Maximum ratings (operating)........................................................................ 15
3.5 Operating modes ......................................................................................... 16
3.6Mode selection ............................................................................................ 17
3.7 Repeater configuration ................................................................................. 18
3.8 Teach-in procedure...................................................................................... 19
3.8.1 Setting the receiver to learning mode ........................................................ 19
3.8.2 Confirmation of Learning Mode .................................................................. 19
3.8.3 Teaching in a transmitter.......................................................................... 19
3.8.4 Confirmation of correct learning/deletion .................................................... 20
3.8.5 Learning of further transmitters................................................................. 20
3.8.6 Selecting the next channel........................................................................ 20
3.8.7 Leaving learning mode ............................................................................. 20
3.8.8 Deleting a transmitter .............................................................................. 20
3.9 Remote management................................................................................... 21
3.9.1 Remote Management Control Commands (RMCC) ........................................ 21
3.9.2 Remote Procedure Calls (RPC)................................................................... 21
3.10 Smart Acknowledge ................................................................................ 22
3.11 Transmit timing...................................................................................... 22
4APPLICATIONS INFORMATION....................................................................... 23
4.1 Transmission range ..................................................................................... 23
4.2 Antenna options TCM 300x ........................................................................... 24
4.2.1 Overview ................................................................................................ 24
4.2.2 Whip antenna.......................................................................................... 24
4.2.3 Helical antenna ....................................................................................... 25
4.2.4 Chip antenna (supplier: Mitsubishi Material, Type AM11DG-ST01) ................. 26
4.3 Antenna options TCM 320x ........................................................................... 27
4.3.1 Positioning of the whip antenna................................................................. 28
4.3.2 Mounting 50 antennas........................................................................... 28
4.4 Recommendations for laying a whip antenna................................................... 30
4.5 Power supply requirements........................................................................... 31
4.6Layout recommendations ............................................................................. 31
4.6.1 TCM 300x recommended foot pattern......................................................... 32
4.7 Soldering information................................................................................... 35

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
4.7.1 TCM 300x ............................................................................................... 35
4.7.2 TCM 320x ............................................................................................... 36
4.8 Tape & Reel specification TCM 300x ............................................................... 36
4.9 Backward compatibility to TCM 220C ............................................................. 37
4.10 Using RVDD ........................................................................................... 37
4.11 Voltage dips........................................................................................... 37
5AGENCY CERTIFICATIONS ............................................................................ 38
5.1 CE approval ................................................................................................ 38
5.2 FCC (United States) Certification ................................................................... 39
5.3 IC (Industry Canada) Certification ................................................................. 42
5.4 FCC Regulatory Statements............................................................................... 43
5.5Industry Canada Regulatory Statements ................................................................ 44
ASerial Interface ........................................................................................... 45
A.1 EnOcean serial protocol ................................................................................ 45
A.1.1 Message format (ESP2) ............................................................................ 45
A.1.2 Byte signals and bit order ......................................................................... 45
A.1.3 Description of serial data structure ............................................................ 46
A.2 Radio transmission/reception commands ........................................................ 47
A.2.1 Detailed description of ORG, DATA_BYTE, and STATUS fields ........................ 47
A.3 Command telegrams and messages ............................................................... 48
A.3.1 ID Range commands................................................................................ 48
A.3.2 Receiver sensitivity commands.................................................................. 48
A.3.3 Reset command ...................................................................................... 48
A.3.4 SW Version ............................................................................................. 48
A.3.5 Error messages ....................................................................................... 49
A.3.6 Command Encoding ................................................................................. 50

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
1MODULE VARIANTS AND RELATED DOCUMENTS
This document describes operation of TCM 300 and TCM 320 modules available in variations
for following frequencies:
TCM 300 / TCM 320: 868.300 MHz
TCM 300C / TCM 320C: 315.000 MHz
TCM 300U / TCM 320U: 902.875 MHz
In side this manual the following terms TCM300x or TCM320x can be used interchangeably
for any of the above frequency, and the term TCM3x0 can be used for each frequency and
module number listed above.
If you want to write own firmware running on the integrated micro controller or need more
detailed information on the Dolphin core please also refer to
Dolphin Core Description
Dolphin API Documentation
In addition we recommend following our application notes, in particular
AN101: Power Supply Layout –Layout considerations for Line-Power
AN102: Antenna Basics –Basic Antenna Design Considerations for EnOcean based
Products
AN105: 315 MHZ Internal Antenna Design –Considerations for EnOcean based Products
AN403: Dolphin Migration - Replacing RCM 1xy / TCM 1x0 / TCM 2x0C by TCM 3x0

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
2GENERAL DESCRIPTION
2.1 Basic functionality
The transceiver modules TCM 300x and TCM 320x enable the realization of highly efficient
RF repeaters and transceivers for the EnOcean radio systems. The module provides several
built-in operating modes. In addition repeater functionality (1 or 2 level) can be activated.
Using the Dolphin API library it is possible to write custom software for the module. All
module variants are in-system programmable.
Built-in operating modes
Unidirectional / bidirectional serial communication
1-channel / 4 channel relay mode
1-channel dimming mode
Product variants
TCM 300x: SMD mountable module for use with external antenna
TCM 300 868.300 MHz
TCM 300C 315.000 MHz
TCM 300U 902.875 MHz
TCM 320x: Variant for vertical mounting with pin connector and whip antenna.
TCM 320 868.300 MHz
TCM 320C 315.000 MHz
TCM 320U 902.875 MHz
Features accessible via API:
Integrated 16 MHz 8051 CPU with 32 kB FLASH and 2 kB SRAM
Various power down and sleep modes
TCM 300x down to 0.2 µA current consumption
TCM 320x down to 1.4 mA current consumption
Up to 14 configurable I/Os ( TCM 300x )
10 bit ADC, 8 bit DAC

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
2.2 Technical data TCM 300 / TCM 320 (868.300 MHz)
Antenna
TCM 320 : 8.6 cm whip
TCM 300: whip or 50 Ω antenna mountable
Frequency
868.300 MHz
Radio Standard (Modulation)
ASK 1)
Data rate
125 kbps
Receiver Sensitivity (25°C) 2)
typ. –96 dBm 2)
Conducted Output Power @50 
min / typ /max
TCM 300: 3.0 dBm / 5.7 dBm / 7.0 dBm
TCM 320: 1.2 dBm / 3.1 dBm / 5.2 dBm
Power Supply
TCM 320: 2.6 V–3.3 V
TCM 300: 2.6 V–4.5 V
Start-up time
<500 ms
Current Consumption
Receive mode: typ. 33 mA, max. 43 mA
Transmit mode: typ. 24 mA, max. 33 mA
Radio Regulations
R&TTE EN 300 220-2: V2.31
1) according to ISO/IEC 14543-3-10
2) @ 0.1% telegram error rate (based on 3 transmitted sub-telegrams)

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
2.3 Technical data TCM 300C / TCM 320C (315.000 MHz)
Antenna
TCM 320C: 15 cm mounted whip antenna
TCM 300: whip or 50 Ω antenna mountable
Frequency
315.000 MHz
Radio Standard (Modulation)
ASK 1)
Data rate
125 kbps
Receiver Sensitivity (25°C)
typ. -98 dBm 2)
Conducted Output Power @50 
min / typ / max
TCM 300C: 5.5 dBm / 7.5 dBm / 9.5 dBm
TCM 320C: 3.5 dBm / 5.5 dBm / 7.5 dBm
Power Supply
TCM 320C: 2.6 V–3.3 V
TCM 300C: 2.6 V–4.5 V
Start-up time
<500 ms
Current Consumption
Receive mode: typ. 33 mA, max. 43 mA
Transmit mode: typ. 24 mA, max. 33 mA
Radio Regulations
FCC CFR-47 Part 15 (US)
IC (Canada)
1) according to ISO/IEC 14543-3-10
2) @ 0.1% telegram error rate (based on 3 transmitted sub-telegrams)
2.4 Technical data TCM 300U/ TCM 320U (902.875 MHz)
Antenna
TCM 320U: 6.4 cm whip mounted whip antenna
TCM 300U: whip or 50 Ω antenna mountable
Frequency
902.875 MHz
Radio Standard (Modulation)
FSK
Data rate
125 kbps
Receiver Sensitivity (25°C) 3)
typ. -98 dB 3)
Conducted Output Power @50 4)
min / typ / max
-1dBm / +1dBm / +3dBm
Power Supply
TCM 320U: 2.6 V–3.3 V
TCM 300U: 2.6 V–4.5 V
Start-up time
<500 ms
Current Consumption
min / typ / max
Receive mode: typ. 33 mA, max. 43 mA
Transmit mode: typ. 24 mA, max. 33 mA
Radio Regulations
FCC CFR-47 Part 15 (US)
IC (Canada)
3) @ 0.1% telegram error rate (based on transmitted sub-telegrams)
4) using +1dBm (V 1.13) power settings which comply to limited modular approval

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
2.5 Physical dimensions TCM 300x
TCM 300x (pads on bottom side of PCB!)
2.6 Physical dimensions TCM 320x
TCM 320x pin connectors
Unless otherwise specified dimensions are in mm.
Tolerances:
PCB outline dimensions 0.2 mm
All other tolerances 0.1 mm
Unless otherwise specified dimensions are in mm.
Tolerances:
PCB outline dimensions 0.2 mm
All other tolerances 0.1 mm

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
PCB dimensions TCM 320x (without pin connector): 36.5 x 18 x 5.5 mm
TCM 300x: 22 x 19 x 3.1 mm
Pin connector 16 pins, grid 2.0 mm (4.0 mm in length, ٱ0.5 mm)
Weight TCM 320x: 3.7 g TCM 300x: 1.9 g
2.7 Environmental conditions
Operating temperature -25 °C … +85 °C
Storage temperature -40 °C … +85 °C
Storage temperature in tape & reel package -20 °C … +50 °C
Humidity 0% … 93% r.H., non-condensing
2.8 Ordering information
Type
Ordering Code
Frequency
TCM 300
S3003-K300
868.300 MHz
TCM 320
S3003-K320
868.300 MHz
TCM 300C
S3033-K300
315.000 MHz
TCM 320C
S3033-K320
315.000 MHz
TCM 300U
S3053-K300
902.875 MHz
TCM 320U
S3053-K320
902.875 MHz

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3FUNCTIONAL DESCRIPTION
3.1 Pin out
The figure above shows the pin out of the TCM 300x / TCM 320x hardware. The pins are
named according to the naming of the Dolphin chip to simplify usage of the DOLPHIN API.
The table in section 3.2 shows the translation of hardware pins to a naming that fits the
functionality of the built-in firmware. When writing own firmware based on the DOLPHIN
API please refer to the Dolphin Core Description and use this manual only for information
regarding the module hardware, such as pin out, layout recommendations, power supply
requirements, antenna options, and approvals.
ADIO0 ADIO1 ADIO2 ADIO3 ADIO4 ADIO6 ADIO7
GND
SCSEDIO0 SCLKDIO1
WSDADIO2
RSDADIO3
PROG_EN
RESET
VDD
GND
RF_WHIP
EO3000I
Antenna
balun
XTAL
16MHz
116
TCM320/320C
TOP VIEW
EO3000I
Antenna
balun
XTAL
16MHz
TCM300/300C
TOP VIEW
DVDD
RVDD
n.c.
IOVDD
SCSEDIO0
WXIDIO WXODIO
n.c.
RESET n.c.
ADIO0 ADIO1 ADIO2 ADIO3 ADIO4 ADIO5 ADIO6 ADIO7
PROG_EN
SCLKDIO1
WSDADIO2
RSDADIO3
GND
GND
GND
RF_50
RF_WHIP
n.c.
VDD
GND
GND GND GND
GND
1
918
26

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3.2 Pin description and operational characteristics
HW Symbol
TCM 300x
pin #
TCM 320x
pin #
Function
Characteristics
GND
1, 5, 7,
17, 24,
26, 28,
31
1, 16
Ground connection
Must be connected to GND; see 4.5
VDD
2
15
Supply voltage
TCM 300: 2.6 V –4.5 V
TCM 320: 2.6 V –3.3 V
Max. ripple: see 3.4
RVDD
8
RF supply voltage
regulator output
1.8 V
Output current:
max. 100 µA with built-in firmware (RX
on)
max. 10 mA while not in RX/TX mode
DVDD
25
Digital supply volt-
age
regulator output
1.8 V
Output current: max. 5 mA
IOVDD
23
GPIO supply volt-
age
TCM 320: internally connected to VDD
TCM 300: Must be connected to de-
sired
interface supply voltage (see 3.4)
See also 3.2.1.
RESET
27
14
Reset input
Programming I/F
Active high reset. External 10 kΩ pull-
down required.
PROG_EN
18
13
Programming I/F
HIGH: programming mode active
LOW: operating mode
Digital input, external 10 kΩ pull-down
required.
ADIO0
9
2
MODE_SEL
Analog input: At start-up input voltage
is measured and mode is selected. See
chapter 3.6.
ADIO1
10
3
MODE 0: not used
In mode 0 the repeater level is 1 and
cannot be modified.
MODE 1-4:
REP_LEVEL
Mode 1-4: At start-up the repeater
level
is selected:
Repeater level 1: LOW
Repeater level 2: HIGH
Digital input, internal pull-up active
ADIO2
11
4
REPEATER
At start-up the repeater can be
switched on:
Repeater on: LOW
Repeater off: HIGH
Digital input, internal pull-up active
ADIO3
12
5
MODE 0: Sensitiv-
ity
Low sensitivity: LOW
High sensitivity: HIGH
Digital input, internal pull-up active

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
MODE 1-4: LRN
Enter/leave teach-in mode. See chap-
ter 3.8
Digital input, internal pull-up active
ADIO4
13
6
MODE 0: not used
Internal pull-up active
MODE 1-4: CLR
Clear ID memory. See chapter 3.8
Digital input, internal pull-up active
ADIO5
14
Not used
Digital output, internally set to LOW
ADIO6
15
7
MODE 0-1:
SER_RX
UART input
MODE 2-4: not
used
Digital input, internal pull-up active
ADIO7
16
8
MODE 0-1:
SER_TX
UART output
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
MODE 2-3: CHAN-
NEL0
Digital output channel 0
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
MODE 4: not used
Digital output, internally set to LOW
Programming I/F
SCSEDIO0
19
9
MODE 0, 2: not
used
Digital output, internally set to LOW
MODE 1:
LRN_TOGGLE
Digital output
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
MODE 3: CHAN-
NEL1
Digital output channel 1
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
MODE 4: PWM
Dimmer output, 50 kHz
Programming I/F
SCLKDIO1
20
10
MODE 0-2: not
used
Digital output, internally set to LOW
MODE 3: CHAN-
NEL2
Digital output channel 2
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
MODE 4:
PWM_IND
Indicating if PWM is active.
Digital output.
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
Programming I/F
WSDADIO2
21
11
MODE 0-2, 4: not
used
Digital output, internally set to LOW
MODE 3: CHAN-
Digital output channel 3

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
NEL3
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
Programming I/F
RSDADIO3
22
12
MODE 0: RMI
Normal operation: Digital output, in-
ternally set to LOW
Remote Management: ACTION com-
mand indicator (see 3.9.1)
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
MODE 1-4: LMI
Normal operation: Learn mode indica-
tor
Remote Management: ACTION com-
mand indicator (see 3.9.1)
Digital output
Max. output current:
2 mA @ IOVDD=3.3 V
0.65 mA @ IOVDD=1.8 V
Programming I/F
WXIDIO
29
Not used
Digital output, internally set to LOW
WXODIO
30
Not used
Digital output, HIGH if VDD>VON,
LOW if VDD<VON, see also 4.11
RF_WHIP
4
RF output
Output for whip antenna
RF_50
6
RF output
50 Ohm output for external antenna
n.c.
3,
32,33,
34
Not connected
Do not connect!
For more details regarding I/Os please refer to Dolphin Core Description.
3.2.1 GPIO supply voltage - IOVDD
For digital communication with other circuitry (peripherals) the digital I/O configured pins
of the mixed signal sensor interface (ADIO0 to ADIO7) and the pins of the serial interface
(SCSEDIO0, SCLKDIO1, WSDADIO2, RSDADIO3) may be operated from supply voltages
different from DVDD. Therefore an interface voltage supply pin IOVDD is available which
must be connected either to DVDD or to an external supply within the tolerated voltage
range of IOVDD.
If DVDD=0 V (e.g. in any sleep mode or if VDD<VOFF) and IOVDD is supplied,
there may be unpredictable and varying current from IOVDD caused by internal
floating nodes. It must be taken care that the current into IOVDD does not exceed
10 mA while DVDD=0 V.
If DVDD=0 V and IOVDD is not supplied, do not apply voltage to any above men-
tioned pin. This may lead to unpredictable malfunction of the device.
Inside TCM 320x the signals VDD and IOVDD are internally connected! Therefore
the above mentioned issues have to be considered when writing own firmware

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
based on API.
For I/O pins configured as analogue pins the IOVDD voltage level is not relevant!
However it is important to connect IOVDD to a supply voltage as specified in 3.4.
3.3 Absolute maximum ratings (non operating)
Symbol
Parameter
Min
Max
Units
VDD
Supply voltage at VDD
TCM 300x
TCM 320x (limitation due to internal VDD-IOVDD connection)
-0.5
-0.5
5.5
3.6
V
V
IOVDD
GPIO supply voltage
-0.5
3.6
V
GND
Ground connection
0
0
V
VINA
Voltage at every analog input pin
-0.5
2
V
VIND1
Voltage at RESET, and every digital input pin except
WXIDIO/WXODIO
-0.5
3.6
V
VIND2
Voltage at WXIDIO / WXODIO input pin
-0.5
2
V
3.4 Maximum ratings (operating)
Symbol
Parameter
Min
Max
Units
VDD
Supply voltage at VDD
TCM 300
TCM 320
2.6
2.6
4.5
3.3
V
V
IOVDD
GPIO supply voltage (see also 3.2.1)
1.7
3.6
V
GND
Ground connection
0
0
V
VINA
Voltage at every analog input pin
0
2.0
V
VIND1
Voltage at RESET, and every digital input pin except
WXIDIO / WXODIO
0
3.6
V
VIND2
Voltage at WXIDIO / WXODIO input pin
0
2.0
V
VDDR
Max. ripple at VDD
50
mVpp
IOVDD
ADIO0 ADIO1 ADIO2 ADIO3 ADIO4 ADIO5 ADIO6 ADIO7 SCSEDIO0 SCLKDIO1 WSDADIO2 RSDADIO3
If configured as digital I/O

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3.5 Operating modes
Mode
Function
Output signal description
No. of
channels
0
Unidirectional serial
interface compatible
with TCM 220C, no
teach-in capability
SER_TX: UART output, supplies standard
data blocks of information from all received
EnOcean radio telegrams (9600 bps; 8 data
bits, no parity bit, one start bit, one stop bit).
For further information see chapter A.1
1
Bidirectional serial
interface, teach-in
capability for up to
30 entries1
SER_RX, SER_TX: Asynchronous bidirectional
Interface, supplies standard data blocks of
information from all received EnOcean radio
telegrams (9600 bps; 8 data bits, no parity
bit, one start bit, one stop bit). For further
information see chapter A.1
LRN_TOGGLE: Learning mode status indica-
tor
2
Rocker Switch - 1
channel, teach-in ca-
pability for up to 30
entries1
Supplies the desired logic switching state
“on/off” at CHANNEL0 when pushing the
switch rockers
1
3
Rocker Switch - 4
channels, teach-in
capability for up to
30 entries2
Same as Mode 2 but operation of 4 receiver
channels (CHANNEL0, CHANNEL1, CHAN-
NEL2, CHANNEL3)
4
4
Dimming - 1 channel,
teach-in capability
for up to 30 entries1
PWM is the PWM output
I-button pressed for shorter than 0.5 s: ON
(Restore duty cycle stored before last
switch-off).
O-button pressed for shorter than 0.5 s:
OFF
O-/I-button pressed longer than 0.5 s:
Duty cycle variation from 10% up to 100%
(O=less, I=more; ~300 PWM steps, in-
crement every 15 ms). Duty cycle variation
stops when button is released.
PWM_IND is active as long as duty cycle is
not 0%
1
5
Reserved
1Each rocker of a PTM transmitter is counted as 1 entry
2Each rocker is counted as 1 entry. If the same rocker is teached into several channels, 1
entry per channel is needed.

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3.6 Mode selection
The operating mode is defined at start-up of the module via a measurement of the voltage
at ADIO0.
Mode
ADIO0 (MODE_SEL)
input voltage range
Proposed com-
ponent values
0
0% to 3.99% VDD
R1: 0 Ohm
R2: leave open
R3: leave open
C1: leave open
1
4% to 11.99% VDD
R1: 1k2 ±1%
R2: 15k ±1%
R3: 150k ±1%
C1: 100p
2
12% to 19.99% VDD
R1: 2k2 ±1%
R2: 12k ±1%
R3: 270k ±1%
C1: 100p
3
20% to 27.99% VDD
R1: 3k9 ±1%
R2: 15k ±1%
R3: 68k ±1%
C1: 100p
4
28% to 35.99% VDD
R1: 4k7 ±1%
R2: 12k ±1%
R3: 56k ±1%
C1: 100p
5
36% to 39.99% VDD
R1: 5k6 ±1%
R2: 10k ±1%
R3: 56k ±1%
C1: 100p
As long as IDs are stored in ID memory, the operating mode can only be changed
after deleting all IDs from memory, e.g. via CLR!
R2
R1
VDD
GND
ADIO0
R3
C1

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3.7 Repeater configuration
TCM 3x0 provides the option to activate a one or two-level repeater for EnOcean radio tele-
grams.
1-level repeater: If a received telegram is a valid and original (not yet repeated), the tele-
gram is repeated after a random delay.
2-level repeater: If a received telegram is valid and original or repeated once, the telegram
is repeated after a random delay.
The repeated telegram is marked as “repeated” by an increased repeater counter.
Setting the repeater level:
At start-up of the module repeater on/off and repeater level are determined.
Please refer to the table in 3.2 regarding the configuration options.
The figure below shows the basic circuit for a stand-alone repeater.
2-level repeating function should only be activated if really needed! Otherwise the
system function can be compromised by collisions of telegrams.
Please note that in Mode 0 2-level repeating is not possible
(for backward compatibility to TCM 220C)!

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3.8 Teach-in procedure
Modes 1 to 4 support teach-in of transmitters.
3.8.1 Setting the receiver to learning mode
Via CLR Pin (ADIO4): Contact to GND longer than t = 2 seconds. Learning Mode LRN
is entered after clearing ID memory.
Via LRN Pin (ADIO3): Contact to GND longer than t = 0.5 seconds. In multi-channel
receiver mode, the pin has to be contacted several times until the desired channel num-
ber is selected (the number of channels is given by the selected operating mode).
Via Remote Config Control: Please refer to documentation of remote management.
3.8.2 Confirmation of Learning Mode
Mode
Confirmation
0
No Learn capability
1
LMI HIGH continuously, LRN_TOGGLE toggling every 1 s.
2
LMI HIGH continuously, CHANNEL0 toggling every 1 s.
3
LMI HIGH continuously, current CHANNELx toggling every 1 s.
4
LMI HIGH continuously, DIM IND HIGH, and PWM toggling every 1 s between
10% and 100%
5
Reserved for future use
3.8.3 Teaching in a transmitter
In learning mode LRN, the sensitivity of the module is limited to in-room operations and
learning of repeater powered signals is disabled (to avoid unintentional learning). Therefore
ensure that the associated radio transmitter will be in a distance less than 5m to the re-
ceiver (not necessary within Remote Learn Mode).
Trigger the telegram of the associated radio transmitter within 30 seconds:
Operate the switch radio transmitter (RPS or HRC) at least once (press I-button or O-
button of the rocker that is to be assigned to the selected receiver channel). If the same
rocker is operated again within 4 seconds it will still be learned. If the same rocker is op-
erated again after more than 4 seconds it will be deleted again. Please note that teach-in
without rocker information is not possible” Please note that scene switches (HRC and last
3 ID bits 0B111) cannot be teach-in!
Or activate the sensor radio transmitter (1BS, 4BS) least once with active LRN bit
(DI_3=0, please refer to “Standardization EnOcean Communication Profiles”). If the
same transmitter is operated again after more than 4 seconds with active LRN bit it will
be deleted again.
Please make sure not to remove supply voltage while in LRN mode! The flash con-
tent could get corrupted!

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TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U
3.8.4 Confirmation of correct learning/deletion
The output which is toggling every second while in teach-in mode (see above) will stay
switched high for 4 seconds to signal that a transmitter has been learned. In case a trans-
mitter ID has been deleted it will stay 4 seconds low.
3.8.5 Learning of further transmitters
After confirmation, the receiver changes again to readiness for learning. Further transmit-
ters can be learned immediately. If available the next receiver channel can be entered by
connecting the LRN pin to GND longer than t = 0.5 seconds. A maximum of 30 radio
transmitters can be learned (further attempts will be ignored; instead of learning confirma-
tion, operating mode is entered). Each rocker of a radio transmitter is counted as one
transmitter.
3.8.6 Selecting the next channel
By fresh contacting of the LRN pin to GND the next remaining channel is selected. In one-
channel mode or after the last channel, the operating mode is entered again.
3.8.7 Leaving learning mode
LRN mode is left in either one of the following events:
Output of last available channel is toggling and a fresh contacting of the LRN pin to GND
for 0.5 seconds is performed
No ID has been added/deleted during the last 30 seconds.
Memory was full and another ID was sent to be learnt
3.8.8 Deleting a transmitter
Deletion of one specific transmitter: Use the same procedure as learning the associated
transmitter.
As transmitter delete confirmation, the corresponding function outputs remain in inactive
state for 4 seconds while LMI keeps active. After that, a wrongly deleted transmitter can be
learned again immediately.
In order to delete a PTM transmitter the same rocker as during learn has to be
operated. If several rockers of a PTM transmitter have been learned, all have to be
deleted separately.
Deletion of all learned transmitters: Connect the CLR pin longer than 2 seconds to GND
All learned transmitters on all channels are deleted at the same time. After this, the re-
ceiver enters Learning Mode.
Please note that in modes 2, 3, and 4 only RPS or HRC telegrams can be learned!