User Manual
deRFmega128-22A001
deRFmega128-22A021
Document Version V01.00
User Manual
Version 01.00
2010-01-25
deRFmega128-22A001 and deRFmega128-22A021
Table of contents
1. Overview.........................................................................................................................4
2. Application.......................................................................................................................4
3. Features..........................................................................................................................4
4. Technical data.................................................................................................................6
5. Mechanical size...............................................................................................................7
5.1. Radio module (pluggable)......................................................................................7
5.2. Footprint receptacles..............................................................................................7
6. Pin assignment................................................................................................................8
7. Programming.................................................................................................................13
7.1. JTAG interface.....................................................................................................13
7.2. ISP interface.........................................................................................................13
7.3. Required Hardware..............................................................................................13
8. Debugging and Tracing.................................................................................................14
9. Onboard EEPROM........................................................................................................15
10. RF components.............................................................................................................16
10.1. deRFmega128-22A001........................................................................................16
10.2. deRFmega128-22A021........................................................................................17
11. Radio Certification.........................................................................................................18
11.1. United States (FCC).............................................................................................18
11.2. European Union (ETSI)........................................................................................19
11.3. Approved antennas..............................................................................................20
12. Ordering Information.....................................................................................................21
dresden elektronik
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deRFmega128-22A001 and deRFmega128-22A021
Document history
Date Version Description
2010-01-25 01.00 Initial version
Mailing list
Firm Division / Name
DE APA
Author / Check / Release
Firm Division / Name
Author DE Dev. / APA
Check
release
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deRFmega128-22A001 and deRFmega128-22A021
1. Overview
The pluggable compact radio modules deRFmega128-22A001 and deRFmega128-22A021
includes Atmel’s Single-Chip ATmega128RFA1, which combines an 8-Bit AVR microcontroller with a 2.4GHz transceiver.
2. Application
The main applications for the radio module deRFmega128-22A001 are:
• 2.4GHz IEEE 802.15.4
• ZigBee® Pro
• ZigBee® RF4CE
• ZigBee® IP
• 6LoWPAN
• SP100
• WirelessHART
• Wireless Sensor Networks (WSN)
• industrial and home controlling and monitoring
3. Features
The radio module deRFmega128-22A001 offers the following features:
• compact size: 30 x 22,7 mm
• pluggable: 2 male connectors, 23 pins per row, 1.27mm pitch
• RF shielding
• usable signals: power supply, peripheral, programming, debugging, tracing, ADC,
GPIO
• application interfaces: 2 x UART, 1 x TWI
• Debug/Programming interfaces: 1 x SPI, 1 x JTAG
• Onboard chip-antenna 2.4GHz
• Onboard EEPROM for firmware update over-the-air and/or process data storing
(1Mbit, serial, TWI, onboard Pull-ups on SDA an SCL)
• Certification: CE, FCC
VCC
1,8..3,6V
JTAG
USART/SPI
TWI
EEPROM
128kx8Bit
ATmega128RF
Chip
antenna
GPIO ADC IRQ
Figure 1: block diagram deRFmega128-22A001
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deRFmega128-22A001 and deRFmega128-22A021
The deRFmega128-22A021 offers the same features like the deRFmega128-22A001 except
the chip antenna is replaced by a coaxial receptacle (U.FL) for connecting an external antenna.
VCC
1,8..3,6V
JTAG
USART/SPI
EEPROM
128kx8Bit
ATmega128RF
TWI
GPIO ADC IRQ
Figure 2: block diagram deRFmega128-22A021
U.FL
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deRFmega128-22A001 and deRFmega128-22A021
4. Technical data
Table 1: Mechanical data
Mechanical
Radio module
Size (L x B ) 30 x 22.7 mm
Connectors
number of headers 2
pins per header 23
pitch 1.27 mm
pin length 3.05 mm
pin diameter 0.51 mm
Insulator (L x B x H) 29.2 x 2.5 x2.5 mm
Table 2: Temperature range
Temperature range
Min Typ Max Unit
Working range T_work -40 +85 °C
Storage range T_storage °C
Table 3: Electrical data
Electrical (Vcc = 3,3VDC)
Parameter Min Typ Max Unit
Supply Voltage VCC 1.8 3.3 3.6 VDC
Current
consumption
I_TXon (TX_PWR = +3dBm) 18 mA
I_TXoff 5 mA
I_Sleep 1 5 µA
Table 4: RF data
Radio (Vcc = 3,3VDC)
Parameter Min Typ Max Unit
Transmit
power conducted
TX_PWR = 0
-0.9 dBm
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deRFmega128-22A001 and deRFmega128-22A021
5. Mechanical size
5.1. Radio module (pluggable)
30.0mm
22.7mm
Figure 3: Size deRFmega128-22A001 and deRFmega128-22A021
5.2. Footprint receptacles
1.27mm 0.60mm
20.4mm
Figure 4: Footprint receptacles 1,27mm pitch
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deRFmega128-22A001 and deRFmega128-22A021
6. Pin assignment
Both pin headers provide the most important signals to the costumer: power supply, peripheral, programming, debugging, tracing, analog measurement and free programmable ports.
All provided signals except VCC, DGND, RSTN, RSTON, AREF and CLKI are free programmable port pins (GPIO).
Figure 5: Top overlay deRFmega128-22A001
Figure 6: Top overlay deRFmega128-22A021
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deRFmega128-22A001 and deRFmega128-22A021
Table 5: Pin assignment of deRFmega128-22A001 and deRFmega128-22A021
X1 X2
Pin µC-Port Pin µC-Port
1 DGND 1 VCC
2 DGND 2 DGND
3 PB5 3 PE0
4 PB7 4 PD2
5 PB4 5 PE1
6 PB6 6 PD6
7 PB3 7 PE2
8 PB0 8 PE3
9 PB2 9 PD4
10 CLKI 10 PE4
11 PB1 11 PF0
12 PD5 12 PE5
13 PD7 13 PF1
14 PD3 14 PE6
15 PD1 15 PF4
16 PG5 16 PE7
17 PD0 17 PF5
18 PG2 18 PF2
19 RSTN 19 PF6
20 PG1 20 RSTON
21 AREF 21 PF7
22 DGND 22 DGND
23 VCC 23 DGND
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deRFmega128-22A001 and deRFmega128-22A021
Table 6: Description of available I/O port pins
Description of available I/O port pins on header pins
I/O port pin Alternate function (signal name) Comments
PB0 SSN PCINT0
PB1 SCK PCINT1
PB2 MOSI PDI PCINT2
PB3 MISO PDO PCINT3
PB4 OC2A PCINT4
PB5 OC1A PCINT5
PB6 OC1B PCINT6
PB7 OC0A OC1C PCINT7
PD0 SCL INT0 Onboard Pull-Up Resistor 4k7
PD1 SDA INT1 Onboard Pull-Up Resistor 4k7
PD2 RXD1 INT2
PD3 TXD1 INT3
PD4 ICP1
PD5 XCK1
PD6 T1
PD7 T0
PE0 RXD0 PCINT8
PE1 TXD0
PE2 XCK0 AIN0
PE3 OC3A AIN1
PE4 OC3B INT4
PE5 OC3C INT5
PE6 T3 INT6
PE7 ICP3 INT7 CLKO
PF0 ADC0
PF1 ADC1
PF2 ADC2 DIG2
PF4 ADC4 TCK
PF5 ADC5 TMS
PF6 ADC6 TDO
PF7 ADC7 TDI
PG1 DIG1
PG2 AMR
PG3 TOSC2
PG4 TOSC1
Note: The I/O port pins PF3/ADC3/DIG4 and PG0/DIG3 are not available!
PG4/TOSC1 and PG3/TOSC2 are connected internal with a 32.768kHz crystal.
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deRFmega128-22A001 and deRFmega128-22A021
Table 7: Signal description list
Signal name Function Type
Active
Comments
Level
Power
VCC
Voltage Regulator Power Supply
Input
Power 1.8V to 3.6V
GND Ground
Clocks and Oscillators
CLKI External Clock Input Input
CLKO Divided System Clock Output Output
JTAG
TCK Test Clock Input No pull-up resistor
TDI Test Data In Input No pull-up resistor
TDO Test Data Out Output
TDM Test Mode Select Input No pull-up resistor
SPI Serial Programming
PDI Data Input
PDO Data Output
Reset
RSTN Microcontroller Reset I/O Low Pull-Up resistor
USART
TXD0 – TXD1 Transmit Data
RXD0 – RXD1 Receive Data
XCK0 – XCK1 Serial Clock
Timer/Counter and PWM Controller
OC0A-OC3A Output Compare and PWM Output
A for Timer/Counter 0 to 3
OC0B-OC3B Output Compare and PWM Output
B for Timer/Counter 0 to 3
OC0C-OC3C Output Compare and PWM Output
C for Timer/Counter 0 to 3
T0, T1, T3 Timer/Counter 0,1,3 Clock Input Input
ICP1
ICP3
Timer/Counter Input Capture Trig-
ger 1 and 3
Input
AMR Automated Meter Reading Input
Interrupt
PCINT0 -
Pin Change Interrupt Source 0 to 7 Output
PCINT7
INT0 – INT7 External Interrupt Input 0 to7 Input
SPI
MISO SPI Master In/Slave Out I/O
MOSI SPI Master Out/Slave In I/O
SCK SPI Bus Serial Clock I/O
SSN SPI Slave Port Select I/O
Two-Wire-Interface
SDA Two-Wire Serial Interface Data I/O Onboard 4k7 Resist.
SCL Two-Wire Serial Interface Clock I/O Onboard 4k7 Resist.
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deRFmega128-22A001 and deRFmega128-22A021
Signal description list (continued)
Signal name Function Type
Active
Comments
Level
Analog-to-Digital Converter
ADC0 – ADC7 Analog to Digital Converter Chan-
Analog
nel 0 to 7
AREF Analog Reference Analog
Analog Comparator
AIN0 Analog Comparator Positive Input Analog
AIN1 Analog Comparator Negative Input Analog
Radio Transceiver
DIG1/DIG2 Antenna Diversity Control Output Output
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deRFmega128-22A001 and deRFmega128-22A021
7. Programming
7.1. JTAG interface
The deRFmega128-22A001 and deRFmega128-22A021 could be programmed over JTAG
interface (TDI, TDO, TCK, TMS). If the JTAG-ICE mkII programmer will be used, no external
pull-up resistors are necessary.
7.2. ISP interface
The deRFmega128-22A001 and deRFmega128-22A021 could be programmed over ISP interface (PDI, PDO).
7.3. Required Hardware
Dresden elektronik ingenieurtechnik gmbh offers the hardware components for a fast start-up
in the Webshop. The following hardware setups are possible:
1. Option
• (A) deRFmega128-22A001 or deRFmega128-22A021
• (B) deRFtoRCB
• (C) Sensor Terminal Board
• (D) JTAG-ICE mkII or similar programmer, e.g. AVR Dragon
• (E) RS232 Level-Shifter for debugging
(D)
(B)
(A)
(E)
Figure 7: Programming option 1
(C)
(E)
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2. option
(C)
deRFmega128-22A001 and deRFmega128-22A021
• (A) deRFmega128-22A001 or deRFmega128-22A021
• (B) deRFtoRCB
• (C) JTAG-ICE mkII or similar programmer, e.g. AVR Dragon
• (D) JTAG-ICE-Adapter (10 pins, pitch 1.27mm to 30 poles flat cable)
• (E) RS232 Level-Shifter for debugging
(E)
(E)
(D)
(D)
(A)
(B)
Figure 8: Programming option 2
8. Debugging and Tracing
Debugging and tracing of the radio module is possible with the deRFtoRCB adapter and the
RS232-Level-Shifter. Both components were offered in the dresden elektronik ingenieurtechnik gmbh Webshop.
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deRFmega128-22A001 and deRFmega128-22A021
9. Onboard EEPROM
The deRFmega128-22A001 and deRFmega128-22A021 contains a Serial-TWI-EEPROM
with a memory size of 128k x 8Bit.
The EEPROM power supply and the pull-ups will be switch on with a LOW on port pin
PD6/T1. It is necessary to wait with communication on the data bus (PD1 and PD0) till the
TWI interface is initialized on the ATmega128RFA1.
Figure 9: Schematic of EEPROM
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deRFmega128-22A001 and deRFmega128-22A021
10. RF components
10.1. deRFmega128-22A001
The chip antenna on the deRFmega128-22A001 is matched with:
• L1 = 1,0nH (0402)
• L2 = 2,2nH (0402)
Some hints for the positioning of the radio module:
• avoid metallized environments in the near
è mismatching of the antenna
è decreased transmit-range
• place the module at the edge of a device
Figure 10: Matching circuit with chip-antenna
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deRFmega128-22A001 and deRFmega128-22A021
10.2. deRFmega128-22A021
The U.FL coaxial connector on the deRFmega128-22A021 is matched with:
• L2 = 1,0pF (0402)
• C19 = 22pF (0402)
• R1 = 10k (0402)
The deRFmega128-22A021 is suitable for applications in plastic or metal cases.
Figure 11: Matching circuit with U.FL-coaxial-connector
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deRFmega128-22A001 and deRFmega128-22A021
11. Radio Certification
11.1. United States (FCC)
The deRFmega128-22A001 and deRFmega128-22A021 complies with the requirements of
FCC part 15.
To fulfill FCC Certification requirements, an OEM manufacturer must comply with the following regulations:
The modular transmitter must be labelled with its own FCC ID number, and, if the FCC ID is
not visible when the module is installed inside another device, then the outside of the device
into which the module is installed must also display a label referring to the enclosed module.
This exterior label can use wording such as the following. Any similar wording that expresses
the same meaning may be used.
Sample label for radio module deRFmega128-22A001:
FCC-ID: XVV-MEGA22A00
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Sample label for radio module deRFmega128-22A021:
FCC-ID: XVV-MEGA22A02
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
To be used with the deRFmega128-22A021 module, the external antenna have been tested
and approved which is specified in here below. The deRFmega128-22A021 Module may be
integrated with other custom design antennas which OEM installer must authorize following
the FCC 15.21 requirements.
The Original Equipment Manufacturer (OEM) must ensure that the OEM modular transmitter
must be labeled with its own FCC ID number. This includes a clearly visible label on the outside of the final product enclosure that displays the contents shown below. If the FCC ID is
not visible when the equipment is installed inside another device, then the outside of the device into which the equipment is installed must also display a label referring to the enclosed
equipment.
This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation
(FCC 15.19). The internal / external antenna(s) used for this mobile transmitter must provide
a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.
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deRFmega128-22A001 and deRFmega128-22A021
Installers must be provided with antenna installation instructions and transmitter operating
conditions for satisfying RF exposure compliance. This device is approved as a mobile device with respect to RF exposure compliance, and may only be marketed to OEM installers.
Use in portable exposure conditions (FCC 2.1093) requires separate equipment authorization.
Modifications not expressly approved by this company could void the user's authority to
operate this equipment (FCC section 15.21).
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the interference
at his own expense (FCC section 15.105).
11.2. European Union (ETSI)
The deRFmega128-22A001 and deRFmega128-22A021 Modules has been certified for use
in European Union countries.
If the deRFmega128-22A001 and deRFmega128-22A021 Modules are incorporated into a
product, the manufacturer must ensure compliance of the final product to the European harmonized EMC and low-voltage/safety standards. A Declaration of Conformity must be issued
for each of these standards and kept on file as described in Annex II of the R&TTE Directive.
The manufacturer must maintain a copy of the deRFmega128-22A001 and deRFmega12822A021 Modules documentation and ensure the final product does not exceed the specified
power ratings, antenna specifications, and/or installation requirements as specified in the
user manual. If any of these specifications are exceeded in the final product, a submission
must be made to a notified body for compliance testing to all required standards.
The “CE“ marking must be affixed to a visible location on the OEM product. The CE mark
shall consist of the initials "CE" taking the following form:
• If the CE marking is reduced or enlarged, the proportions given in the above graduated drawing must be respected.
• The CE marking must have a height of at least 5mm except where this is not possible
on account of the nature of the apparatus
• The CE marking must be affixed visibly, legibly, and indelibly.
•
More detailed information about CE marking requirements you can find at "DIRECTIVE
1999/5/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL" on 9 March 1999
at section 12.
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deRFmega128-22A001 and deRFmega128-22A021
11.3. Approved antennas
The deRFmega128-22A001 has an integrated chip antenna. The design is fully compliant
with all regulations.
The deRFmega128-22A021 has been tested and approved for use with the antenna listed
below. The module may be integrated with other custom design antennas which OEM installer must authorize with respective regulatory agencies. The used antenna was connected
to the radio module with a 10cm “U.FL-to-SMA-Reverse pigtail”.
Table 8: Approved antenna(s) and accessory
Approved antenna(s) and accessory
Part
number
23768 Dual-band antenna (2.45GHz and
23769 U.FL-to-SMA-Reverse pigtail,
Description Manufacturer Gain
[dBi]
Antenna Factor +4,7 20
5.8GHz) with Reverse-SMAConnector, ¼ wave
10 cm
Hirose /
Profineon
-0,37
Min. Separation
[cm]
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deRFmega128-22A001 and deRFmega128-22A021
12. Ordering Information
The product name includes the following information:
deRF xxxx - x x x xx x
Revision
Features
Size
Flash Memory
Frequency Range
Product / Chipset
Table 9: product name code
Product name code
Information Code Explanation Comments
Product / Chipset mega128 ATmega128RFA1 radio module
1 780/868/915 MHz Frequency range
2 2.4 GHz
Flash memory 2 128 kByte
Size A 30 x 22 mm pluggable
00 chip antenna onboard Features
02 coaxial connector onboard U.FL
<blank>
1 Rev 1
Rev 0 Revision
Table 10: ordering information
Ordering information
Part number Product name Comments
28182 deRFmega128-22A001 pluggable radio module with onboard chip
antenna
28498 deRFmega128-22A021 pluggable radio module with onboard U.FL
coaxial connector
dresden elektronik
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Enno-Heidebroek-Str. 12
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Tel.: 0351 – 31 85 00
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deRFmega128-22A001 and deRFmega128-22A021
dresden elektronik ingenieurtechnik gmbh
Enno-Heidebroek-Straße 12
D-01237 Dresden
Tel. +49 351 - 31 85 00 | Fax +49 351 - 318 50 10
E-Mail wireless@dresden-elektronik.de
General manager: Dipl.-Ing. L. Pietschmann
Commercial Registry: HRB 749 Dresden Municipal Court
Tax number: 201/107/00726
Sales tax identification number: DE 140125678
Trademarks and acknowledgements
• ZigBee® is a registered trademark of the ZigBee Alliance.
• 802.15.4™ is a trademark of the Institute of Electrical and Electronics Engineers (IEEE).
These trademarks are registered by their respective owners in certain countries only. Other
brands and their products are trademarks or registered trademarks of their respective holders and should be noted as such.
Disclaimer
This note is provided as-is and is subject to change without notice. Except to the extent prohibited by law, dresden elektronik ingenieurtechnik gmbh makes no express or implied warranty of any kind with regard to this guide, and specifically disclaims the implied warranties
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dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
01237 Dresden
Tel.: 0351 – 31 85 00
Fax: 0351 – 3 18 50 10
wireless@dresden-elektronik.de
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