EnOcean STM300U User Manual

USER MANUAL

EnOcean GmbH
Kolpingring 18a
82041 Oberhaching
Germany

Phone [phone]
Fax [phone]
[e-mail]
www.enocean.com

Subject to modifications
TCM 300 / TCM 320 User Manual 10
February 6th, 2013
Page 1/53

Observe precautions! Electrostatic sensitive devices!

Transceiver Module
TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

February 6th, 2013

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

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 2/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

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 ex­cluded 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 ex­tended. 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 anten­na 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

REVISION HISTORY

The following major modifications and improvements have been made to the first version of
this document:

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 characteris­tics. 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 web­site: 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 contain­ing 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

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 3/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

TABLE OF CONTENT

1 MODULE VARIANTS AND RELATED DOCUMENTS ............................................... 5

2 GENERAL 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

3 FUNCTIONAL 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

3.6 Mode 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

4 APPLICATIONS 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

4.3 Antenna options TCM 320x ........................................................................... 26

4.3.1 Positioning of the whip antenna ................................................................. 27

4.3.2 Mounting 50  antennas ........................................................................... 27

4.4 Recommendations for laying a whip antenna................................................... 29

4.5 Power supply requirements ........................................................................... 30

4.6 Layout recommendations ............................................................................. 30

4.6.1 TCM 300x recommended foot pattern......................................................... 31

4.7 Soldering information ................................................................................... 34

4.7.1 TCM 300x ............................................................................................... 34

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 4/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

4.7.2 TCM 320x ............................................................................................... 35

4.8 Tape & Reel specification TCM 300x ............................................................... 35

4.9 Backward compatibility to TCM 220C ............................................................. 36

4.10 Using RVDD ........................................................................................... 36

4.11 Voltage dips ........................................................................................... 36

5 AGENCY CERTIFICATIONS ............................................................................ 37

5.1 CE approval ................................................................................................ 37

5.2 FCC (United States) Certification ................................................................... 38

5.3 IC (Industry Canada) Certification ................................................................. 41

5.4 FCC Regulatory Statements ............................................................................... 42

5.5 Industry Canada Regulatory Statements ................................................................ 43

A Serial Interface ........................................................................................... 44

A.1 EnOcean serial protocol ................................................................................ 44

A.1.1 Message format (ESP2) ............................................................................ 44

A.1.2 Byte signals and bit order ......................................................................... 44

A.1.3 Description of serial data structure ............................................................ 45

A.2 Radio transmission/reception commands ........................................................ 46

A.2.1 Detailed description of ORG, DATA_BYTE, and STATUS fields ........................ 46

A.3 Command telegrams and messages ............................................................... 47

A.3.1 ID Range commands ................................................................................ 47

A.3.2 Receiver sensitivity commands .................................................................. 47

A.3.3 Reset command ...................................................................................... 47

A.3.4 SW Version ............................................................................................. 47

A.3.5 Error messages ....................................................................................... 48

A.3.6 Command Encoding ................................................................................. 49

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 5/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

1 MODULE 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

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 6/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

2 GENERAL 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

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 7/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

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

2.2 Technical data TCM 300 / TCM 320 (868.300 MHz)

1) according to ISO/IEC 14543-3-10

2) @ 0.1% telegram error rate (based on 3 transmitted sub-telegrams)

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 8/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

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)

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)

2.3 Technical data TCM 300C / TCM 320C (315.000 MHz)

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)

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

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 9/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

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

2.5 Physical dimensions TCM 300x

TCM 300x (pads on bottom side of PCB!)

2.6 Physical dimensions TCM 320x

TCM 320x pin connectors

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 10/53

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, ٱ 0.5 mm)

Weight TCM 320x: 3.7 g TCM 300x: 1.9 g

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

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

2.7 Environmental conditions

2.8 Ordering information

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 11/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

ADIO0

ADIO1

ADIO2

ADIO3

ADIO4

ADIO6

ADIO7

GND

SCSEDIO0

SCLKDIO1

WSDADIO2

RSDADIO3

PROG_EN

RESET

VDD

GND

RF_WHIP

EO3000I

Antenna

balun

XTAL

16MHz

1 16

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

9

18

26

3 FUNCTIONAL 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.

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 12/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

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 volt­age
regulator output

1.8 V
Output current: max. 5 mA

IOVDD

23 GPIO supply volt­age

TCM 320: internally connected to VDD
TCM 300: Must be connected to de­sired
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 pull­down 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: Sensitiv­ity

Low sensitivity: LOW
High sensitivity: HIGH
Digital input, internal pull-up active

3.2 Pin description and operational characteristics

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 13/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

MODE 1-4: LRN

Enter/leave teach-in mode. See chap­ter 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: CHAN­NEL0

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: CHAN­NEL1

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: CHAN­NEL2

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

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 14/53

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, in­ternally set to LOW
Remote Management: ACTION com­mand 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 indica­tor
Remote Management: ACTION com­mand 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!

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 men­tioned 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

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.

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 15/53

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.

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

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

3.3 Absolute maximum ratings (non operating)

3.4 Maximum ratings (operating)

USER MANUAL

© 2013 EnOcean | www.enocean.com TCM 300x / TCM 320x User Manual | Page 16/53

TCM 300 / TCM 300C / TCM 300U
TCM 320 / TCM 320C / TCM 320U

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 indica­tor

2

Rocker Switch - 1
channel, teach-in ca­pability 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, CHAN­NEL2, 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, in­crement 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

3.5 Operating modes

1

Each rocker of a PTM transmitter is counted as 1 entry

2

Each rocker is counted as 1 entry. If the same rocker is teached into several channels, 1

entry per channel is needed.