TRANSPONDER EVALUATION KIT
USER’S GUIDE
2000 Microchip Technology Inc. DS51111B
Information contained in this publication regarding device applications and the like is intended by way of suggestion
only. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with
respect to the accuracy or use of such information. Use of Microchip’s products as critical components in life support
systems is not authorized except with express written approval by Microchip.
2000 Microchip Technology Incorporated. All rights reserved.
The Microchip name and logo, and KEELOQ are registered trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
All product/company trademarks mentioned herein are the property of their respective companies.
Transponder Evaluation Kit User’s Guide
DS51111B 2000 Microchip Technology Inc.
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Table of Contents
2000 Microchip Technology Inc. DS51111B-page iii
Chapter 1. Setup
1.1 Evaluation Kit Overview .................................................................. 1
1.2 Software Installation ....................................................................... 1
1.3 Hardware Setup .............................................................................. 2
1.4 Quick Start ...................................................................................... 2
Chapter 2. Base Station
2.1 Base Station Overview ................................................................... 5
2.2 Base Station Outputs ...................................................................... 6
2.3 Base Station Polling Mode .............................................................. 7
2.4 Inductive Communication ............................................................... 8
2.5 RF Communication ......................................................................... 8
2.6 High Voltage – Danger ................................................................... 8
2.7 Stand-Alone Mode .......................................................................... 8
2.8 Base Station Programming ............................................................. 8
2.9 Learning a Transponder ................................................................. 9
2.10 Erasing Transponders .................................................................. 10
Chapter 3. HCS410
3.1 Selecting an HCS410 ................................................................... 11
3.2 Programming an HCS410 ............................................................. 11
3.3 Code Hopping Transmissions ....................................................... 16
3.4 SEED Transmissions .................................................................... 16
Chapter 4. HCS412
4.1 Selecting an HCS412 ................................................................... 17
4.2 Programming an HCS412 ............................................................. 17
4.3 Code Hopping Transmissions ....................................................... 23
4.4 SEED Transmissions .................................................................... 23
Transponder Evaluation Kit User’s Guide
DS51111B-page iv 2000 Microchip Technology Inc.
Chapter 5. Other Dialog Boxes
5.1 User EEPROM Dialog ...................................................................25
5.2 IFF Dialog ......................................................................................25
5.3 Monitor IFF Dialog .........................................................................26
Chapter 6. Configuration File
6.1 Configuration File Overview ..........................................................27
6.2 New Setup .....................................................................................27
6.3 Load Setup ....................................................................................27
6.4 Save Setup ....................................................................................27
6.5 Save Setup As ..............................................................................27
Chapter 7. Key Generation
7.1 Key Generation Overview .............................................................29
7.2 Manufacturer’s Code .....................................................................29
7.3 Key Generation Algorithm .............................................................30
7.4 Key Generation Source .................................................................30
7.5 SEED/IFF2 ....................................................................................30
7.6 Simple Learn .................................................................................30
7.7 Normal Learn ................................................................................31
7.8 Secure Learn .................................................................................31
Chapter 8. Communication
8.1 Serial Port Selection ......................................................................33
Chapter 9. Demonstrations
9.1 Overview .......................................................................................35
Chapter 10. Fault Finding
10.1 Fault Finding .................................................................................39
Table of Contents
2000 Microchip Technology Inc. DS51111B-page v
Appendix A. Schematic Diagrams
Figure A.1: Transponder Base Station (BASE_V3.0) ............................. 41
Figure A.2: Transponder Base Station (GEN_5V) ................................. 42
Figure A.3: Transponder Base Station (demod) ..................................... 43
Figure A.4: Transponder Base Station (PIC16C66) ............................... 44
Figure A.5: Transponder Base Station (coildrv) ..................................... 45
Figure A.6: HCS410 DIP Socket Long Range RF Transponder ............ 46
Figure A.7: HCS412 Credit Card Transmitter/Transponder ................... 47
Figure A.8: HCS410 SOIC Short Range Transponder ........................... 48
Index .........................................................................................................49
Worldwide Sales and Service .................................................................50
Transponder Evaluation Kit User’s Guide
DS51111B-page vi 2000 Microchip Technology Inc.
2000 Microchip Technology Inc. DS51111B-page 1
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 1. Setup
1.1 Evaluation Kit Overview
The Transponder Evaluation kit enables the programming of HCS410s and
HCS412s, as well as evaluating how the transponders are used in a system.
The kit is made up of four principal items:
•Software
•Base Station
•Batteryless Transponders
•Battery-powered Transponder/RF Transmitters.
The Base Station has the ability to program transponders inductively and act
as a stand-alone decoder. When in stand-alone mode, the Base Station can
learn transponders and do inductive Identify Friend or Foe (IFF) validation.
The Batteryless Transponders are powered through the magnetic field
provided by the Base Station.
The Transponder/Transmitter combines the convenience of an RF transmitter
with the security of a transponder. Typically, the RF transmitter will be used as
a convenience item: i.e., unlocking the car door as the owner approaches the
vehicle. Once in the car, a coil around the ignition electronically validates the
key and disarms the immobilizer. This is completely transparent to the
operator. Even if the battery in the key goes flat, the transponder will still be
able to get power from the field generated by the car's coil.
1.2 Software Installation
1.2.1 Windows® 3.1
Place the software into a disk drive. From Program Manager, choose File >
Run. Type in a:install.exe.
Follow the installation instructions on the screen.
The first time you run the software, select the serial port you will be using for
communicating to the Base Station from the Options > Serial Port menu.
1.2.2 Windows® 95/98 or Windows NT®
Place the software into a disk drive. From the Start menu, select the Run...
option. Type in a:install.exe.
Follow the installation instructions on the screen.
The first time you run the software, select the serial port you will be using for
communicating to the Base Station from the Options > Serial Port port menu.
Transponder Evaluation Kit User’s Guide
DS51111B-page 2 2000 Microchip Technology Inc.
1.3 Hardware Setup
When programming either the Base Station or a transponder, the Base
Station needs to be connected to a free serial port on the driving PC using the
provided serial cable. After this, the Base Station should be powered up using
the 12V power supply provided in the evaluation kit.
When programming a transponder inductively make sure the transponder is in
the field when hitting the program button.
1.4 Quick Start
For those of you who don’t read the user manual when you open a new toy
here is a quick start to using the Evaluation Kit.
1. Open the box and unpack the kit’s contents.
2. Install the software.
3. Connect the Base Station to a free serial port on your PC.
4. Connect the Base Station to the provided power supply.
5. Run the Evaluation Kit Software (Start > Programs > Transponder Eval-
uation Kit > Transponder Evaluation Kit).
6. Select and test the serial port that the Base Station is connected to
(Setup > Serial Port).
7. Select a demo and work your way through to program the Base Station
and transmitter. A suggested demo is the HCS412s Passive Entry Demo
(Demos > HCS412 > Passive Entry Demo). See Chapter 9 for more
information.
8. Bring up the Monitor IFF dialog. This dialog displays any communication
between the Base Station and a transmitter.
9. Press the LEARN button on the Base Station. Notice how the LEARN
and FIELD LEDs turn on as the Base Station searches for a transponder.
10. Bring the credit card-shaped HCS412 Transmitter/Transponder into the
field. The LEARN LED will start flashing, indicating that the Base Station
has learned the HCS412.
11. Notice how the VALID_TOKEN LED lights up each time the Base Station
'Polls' for a transmitter (the FIELD LED will turn on). This indicates that
the transponder has been validated.
12. Look at the Monitor IFF dialog. Notice how the Base Station sends a
challenge to the transponder, the response the transponder sends back
to the Base Station, and the decrypted version of the transponder's
response.
13. Press a button on the Transmitter/Transponder twice. Notice how the
LEARN LED flickers while the transmitter button is pressed. This indi-
cates that the Base Station is receiving transmissions from the transmit-
ter.
14. After two transmissions, the Base Station will have 'synchronized' with
the transmitter and will put an output on the S0:S1 LEDs, depending on
which button is pressed.
2000 Microchip Technology Inc. DS51111B-page 3
Setup
15. Look at the Monitor IFF dialog. Whenever you transmit, the counter
increments.
16. Remove JP3 on the Base Station to disable the RF receiver.
17. Press a button on the transmitter 10 times.
18. Replace JP3 and press S0 on the transmitter. The S0 LED on the Base
Station lights up and that the counter has increased by 10.
19. Remove JP3 again and press a button on the transmitter 20 times.
20. Replace JP3. Press and hold S0 on the transmitter. The LEARN LED
flickers on and off indicating that transmissions are being received but
there is no other output on the Base Station LEDs.
21. Press S0 again. The LEARN LED flickers and the S0 LED on the Base
Station lights up indicating that the Base Station has resynchronized with
the transmitter.
22. To change the polling mode of the Base Station from continuous polling
to user-activated polling:
a) Press and hold the RESET push button on the Base Station.
b) Press and hold the POLL push button.
c) Release the RESET push button.
d) After a second, release the POLL push button.
23. The Base Station has now toggled to user-activated polling (repeat the
previous step to return to continuous polling mode).
24. When in user-activated polling mode, polling can be initiated by hitting
the POLL push button.
Transponder Evaluation Kit User’s Guide
DS51111B-page 4 2000 Microchip Technology Inc.
NOTES:
2000 Microchip Technology Inc. DS51111B-page 5
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 2. Base Station
2.1 Base Station Overview
2.1.1 Warning: High Voltage
First and foremost: THERE ARE HIGH VOLTAGE AREAS on the Base
Station board. The voltage on the coil can reach over 400 VPP and has a peak
current of 1A. The high voltage areas on the board are marked clearly. Don’t
touch anything within those areas.
2.1.2 Base Station Features
•Inductive authentication of transponders
•Can receive and validate KEELOQ® code hopping transmissions
•Can learn up to four KEELOQ encoders
•Can be used to program HCS410 and HCS412 devices inductively or
through the PWM/S2 lines
•Selectable polling mode
The Base Station has a number of push button inputs and LED outputs:
RESET push button – Resets the Base Station.
POLL push button – Forces the Base Station to poll continuously for 2
seconds before switching off.
LEARN push button – Places the Base Station in learn mode.
LEARN LED – Gives information about the status of a learn and general
functioning of the Base Station. The LEARN LED will flicker on briefly each
time a transponder's serial number is read when a transponder is brought into
the field. This indicates that the Base Station has detected a transponder in
the field. If the transponder has been learned, the Base Station will attempt to
validate the transponder.
VALID TOKEN LED – Lights up for 500 ms each time the Base Station
successfully validates a learned transponder inductively.
S0:S1:S2:S3 and PROX_RF LEDs – Indicates that a valid RF transmission
has been received from a transmitter. The LEDs are lit for 500 ms depending
on which button is pressed on the transmitter.
FIELD LED – Indicates when the Base Station is polling for a transponder and
that the field is on.
Warning: Strong Magnetic Field
The Base Stations generates a strong magnetic field. Avoid close
proximity with devices influenced by magnetic fields: i.e., CRTs,
pacemakers, computer disks, audio and video tapes, and
magnetic strip cards.
Transponder Evaluation Kit User’s Guide
DS51111B-page 6 2000 Microchip Technology Inc.
2.2 Base Station Outputs
Figure 2.1: Base Station
The Base Station has a number of LEDs which display the results of
authentication attempts.
The S0:S1:S2:S3, and PROX_RF LEDs are switched on for 500 ms whenever
the Base Station receives a valid code hopping transmission from a learned
transmitter. The PROX_RF will be illuminated if a transmission is initiated by a
magnetic field.
The VALID TOKEN LED is switched on for 500 ms whenever the Base Station
authenticates a learned transponder.
The LEARN LED flickers every time an RF transmission is received or if the
serial number is read from a transponder. The LEARN LED will flicker before
the Base Station attempts to check if the transmitter has been learned. This
output is useful to a programmer giving feedback as to whether the Base
Station detects a transponder or transmitter.
RF Receiver
JP2
RESET POLL LEARN
93C
46B
PIC16C66
LEARN
VALI D
TOKEN
FIELD
S0
S2
S3
PROX_RF
S1
12V
DC
Connect RS-232 DB9 to here
Connect 12V Power Supply
High Voltage Area Transponder Evaluation Kit Base Station
2000 Microchip Technology Inc. DS51111B-page 7
Base Station
2.3 Base Station Polling Mode
The Base Station has two polling modes: Continuous and User-activated. In
continuous polling mode, the Base Station automatically switches the field on
and off. In user-activated polling mode, the Base Station only polls when
activated by pressing the POLL push button on the Base Station.
There are two ways to switch from continuous polling mode to user-activated
polling mode. The first uses the Transponder Evaluation Kit software. The
polling mode can be found on the Base Config tab of the Program dialog
(Transponder > Program). Once the correct polling mode is selected, use the
PROGRAM BASE button to program the Base Station.
The second method is to toggle between the two modes without connecting
the Base Station to the PC. To do this, connect the Base Station to the power
supply. Next, press and hold the RESET push button on the Base Station.
While still holding the RESET push button, press the POLL push button, and
Table 2.1: Base Station Jumpers
Jumper Name Description
JP1 B2T This is the line between the PICmicro® 8-bit micro-
controller (MCU) and the circuitry controlling the Base
Station coil. The jumper should be in place unless the
user wants to disable the Base Station coil.
JP2 T2B This connects the Base Station to the inductive ana-
log reception circuitry (pins 1 and 2) or to the 8x2
header (pins 2 and 3).
JP3 RF_OUT This is the output of the RF receiver. This jumper
should be removed to disconnect the RF receiver
from the PICmicro MCU.
J2 The pins on the 8x2 header are mapped as follows:
Pin 1 –Ground
Pin 2 –Not used
Pin 3 –PWM used during programming
Pin 4 –Not used
Pin 5 –12V directly from the power supply
Pin 6 –Not used
Pin 7 –LC0
Pin 8 –Not used
Pin 9 –LC1/S3
Pin 10 –Not used
Pin 11 –S2
Pin 12 –Not used
Pin 13 –S1
Pin 14 –5V
Pin 15 –S0
Pin 16 –Not used
Transponder Evaluation Kit User’s Guide
DS51111B-page 8 2000 Microchip Technology Inc.
then release the RESET push button. Wait a second and then release the
POLL push button. The Base Station will continue to poll for a second or two
and then switch to the newly-selected polling mode.
2.4 Inductive Communication
The inductive communication between the Base Station and a transponder
takes place via the resonant capacitor/coil combination and analog reception
circuitry on the Base Station. The capacitor/coil are resonated at 125 kHz.
2.5 RF Communication
RF reception on the Base Station is done using the Telecontrolli receiver
module on the Base Station. The transmitter transmits at 433 MHz.
2.6 High Voltage – Danger
Please note that the Base Station capacitor/coil has a peak-to-peak voltage of
over 400V and a peak current of over 1A.
2.7 Stand-Alone Mode
In stand-alone mode, the Base Station acts as a stand-alone decoder. The
Base Station can learn up to four transponders in stand-alone mode.
When in stand-alone mode, the IFF activity on the Base Station can be
monitored by connecting the Base Station to the PC and selecting the Monitor
IFF dialog.
Stand-alone mode is the default state of the Base Station, and the Base
Station returns to stand-alone mode whenever a command from the PC is
completed.
The Base Station does not need to be connected to the PC when in stand-
alone mode.
2.8 Base Station Programming
To program the Base Station, connect the Base Station to the appropriate
COM port on the PC using the RS-232 cable included in the evaluation kit.
To program the Base Station with the correct Key Generation options and
encoder type in the Base Station, select Transponder > Program from the
main menu. This displays the Program dialog. Set the transponder options as
if a transponder is being programmed, and press the Program Base push
button to transfer the information to the Base Station. See Chapter 10 for
more information.
Warning: HIGH VOLTAGE AREA
DO NOT touch any of the areas that are labeled HIGH VOLTAGE.
You will get shocked.
2000 Microchip Technology Inc. DS51111B-page 9
Base Station
2.9 Learning a Transponder
The Base Station is able to “Learn” up to four transponders. During this
process, the Base Station reads the transponder’s serial number, calculates
the transponder’s key, and gets the transponders synchronization counter (if
used as a transmitter). This information is then saved in EEPROM.
The next time the Base Station receives a transmission or reads the serial
number from a transponder, the Base Station searches through its “data
base” of serial numbers. If the Base Station finds the newly acquired serial
number, the code hopping portion of a transmission (or response from the
transponder) is decrypted. The resulting value is then compared to the
expected value (synchronization counter or challenge). If the decrypted data
is valid, the output LEDs lights up for 500 ms.
To learn a transponder onto a system inductively, perform the following steps:
1. Check that the Base Station is powered up and connected to the PC.
2. Program the Base Station and transponder with the appropriate setup.
3. Hit the LEARN push button – the LEARN LED will light up.
4. Bring the transponder into the field.
5. If the transponder is successfully learned, the LEARN LED will flash on
and off about 10 times.
6. The Base Station can learn up to four transponders, after which the first
transmitter learned will be overwritten.
7. If the learn operation fails, the learn LED will turn off and on for a second
before returning to stand-alone mode.
It is also possible to learn a transponder onto the Base Station using RF:
1. Check that the Base Station is powered up and connected to the PC.
2. Program the Base Station and transponder with the appropriate setup.
3. Hit the LEARN push button – the LEARN LED will light up.
4. Press one of the buttons on the transmitter – the LEARN LED will switch
off.
5. Press a button on the transmitter a second time. Note that when using
secure learn, the second transmission should be a SEED transmission.
6. If the transponder is successfully learned, the LEARN LED will flash on
and off about 10 times.
7. If the learn operation fails, the learn LED will turn off and on for a second
before returning to normal stand-alone mode.
If the learn operation fails, check that both the transponder and Base Station
have been programmed correctly.
Transponder Evaluation Kit User’s Guide
DS51111B-page 10 2000 Microchip Technology Inc.
2.10 Erasing Transponders
It is possible to erase all the transponders learned by the Base Station.
1. Press and hold the LEARN push button. The LEARN LED will switch on.
2. After about eight seconds, the LEARN LED will switch off, indicating that
all the transponders have been erased.
3. Release the LEARN push button.
2000 Microchip Technology Inc. DS51111B-page 11
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 3. HCS410
3.1 Selecting an HCS410
The HCS410 can be selected as the transponder being evaluated in the
Transponder Select dialog (Setup > Xponder Select from the main menu).
3.2 Programming an HCS410
The Program dialog can be reached via Transponder > Program from the
main menu. The Program dialog allows the selection of the HCS410s options
to be programmed into the HCS410. After programming the HCS410 the
Base Station should be programmed so that it will be able to learn the
HCS410. For a more detailed description of all the features, consult the latest
data sheet. The following is a description of the options available in the
Program dialog.
•Anticollision/XPRF – Sets anticollision and RF transmission options in
transponder mode.
•Code Word Blanking – Blanks out alternate code words enabling more
power to be transmitted in each transmission (FCC).
•Counter – 16-bit counter transmitted as part of a code hopping trans-
mission.
•Delayed Increment – Increments the synchronization counter by 12,
20 seconds after the last button is pressed. This can be used by the
decoder to defeat the latest attack on code hopping systems.
•Discrimination Value – 12-bit value transmitted as part of a code hop-
ping transmission.
•Extended Serial Number – The full 32-bit serial number is transmitted
in a code hopping transmission when the extended serial number is
enabled. If not enabled the S0:S1:S2 status replaces the most signifi-
cant nibble of the serial number in a transmission.
•IFF Baud Rate – Selects the communication speed used in inductive
communication.
•Intelligent Damping – Used in circuits with a high Q to enable faster
data communication rates.
•LED Output – S2 can double as a LED output if this option is enabled.
•Low-Voltage Trip Point – Can be set to low (3V lithium battery) or high
(6V battery).
•Min 3 Tx – At least three complete RF transmissions are sent each time
the transponder is activated using the S0, S1 or S2 inputs.
•Overflow – Extends the range of the synchronization counter.
Transponder Evaluation Kit User’s Guide
DS51111B-page 12 2000 Microchip Technology Inc.
•RF Baud Rate – Selects the communication speed used in code hop-
ping mode.
•Serial Number – 32-bit serial number.
•Transmission Format – The transmission format is selectable
between PWM and Manchester Modulation
•Transport Code – 32-bit transport code.
•User EEPROM – 64-bit user EEPROM.
Figure 3.1: Wire Programming a Transmitter/Transponder
•OK push button – Accepts the settings selected but does not program
the HCS410 or Base Station.
•CANCEL push button – Discards the changes made and closes the
dialog.
•HELP push button – Brings up the online help.
•PRGM BASE push button – Programs the Base Station with the appro-
priate manufacturer's code, key generation source and algorithm, trans-
mission format, and speed so that it is able to communicate with an
HCS410 programmed with the settings as given.
•WIRE PRGM push button – Programs the HCS410 with the selected
data using the S2 and PWM lines. This can be done when the transmit-
ter is connected to the Base Station at J2.
•INDUCT PRGM push button – Programs the HCS410 with the data
selected inductively.
For more information about communication problems, see Chapter 10.
RF Receiver
JP2
RESET POLL LEARN
93C
46B
PIC16C66
LEARN
VAL I D
TOKEN
FIELD
S0
S2
S3
Prox_RF
S1
S1
12V
DC
Connect RS-232 DB9 to here
Connect 12V Power Supply
High Voltage Area Transponder Evaluation Kit Base Station
ET
HCS
410
2000 Microchip Technology Inc. DS51111B-page 13
HCS410
3.2.1 Advanced Options
Certain options should not be changed to ensure that the transponder can be
learned by the Base Station.These are:
•The code hopping transmission modulation format defaults to PWM
and can be changed on the Advanced Opts tab of the Program dialog.
•The oscillator tuning bits are set by the Base Station.
•The Key/SEED options are set on the Key Generation tab of the Pro-
gram dialog.
•The synchronization counter is incremented and transmitted each
time the HCS410 transmits a code hopping transmission. The synchro-
nization counter is automatically set to 0000 by default.
•The discrimination values defaults to the least significant bit of the
serial number.
3.2.2 Anticollision/XP RF
These two bits in the HCS410 are used to enable or disable anticollision
mode, and enable or disable RF transmissions when in transponder mode.
•None – Disables both anticollision and inductively activated RF trans-
missions to allow the HCS410 to work as a pure transponder in IFF
mode.
•Proximity Activated – When selected, the HCS410 sends out ACK
pulses when placed in a magnetic field. If the Base Station does not
send a command within 50 ms, the HCS410 transmits a code hopping
transmission for 2 seconds before returning to transponder mode.
•Anticollision – Places the Base Statin into anticollision mode. This
allows multiple transponders to be brought into the same field.
•RF Echo – When selected, all of the HCS410 transponder responses
are echoed on the PWM output.
3.2.3 Code Word Blanking
When code word blanking is enabled, alternate code words are blanked. The
FCC limits the amount of power that can be transmitted in a 100 ms window.
Code word blanking is useful when trying to transmit the maximum power to a
receiver.
3.2.4 Delayed Increment
When delayed increment is enabled, the HCS410 increases the
synchronization counter by 12, 20 seconds after pressing the last push
button. This can be used to foil jam and scan techniques.
Transponder Evaluation Kit User’s Guide
DS51111B-page 14 2000 Microchip Technology Inc.
3.2.5 Discrimination Value
The HCS410 has a 10-bit discrimination value. The discrimination value forms
part of the encrypted portion of a code hopping transmission. A KEELOQ
decoder uses the discrimination value to validate the decrypted code.
3.2.6 Extended Serial Number
The serial number is 32-bits long. To transmit the full 32 bits of the serial
number, this option must be enabled. If this option is disabled, a copy of the
function code (buttons pressed) is transmitted instead of the most significant
nibble of the serial number.
3.2.7 IFF Baud Rate
The HCS410 can communicate inductively at two speeds. The slow baud rate
has a nominal elemental period of 200 µs and a fast baud rate of 100 µs. The
demodulator circuitry has been optimized to work with the slow
communication rate (200 µs) and will not work at the fast communication rate.
3.2.8 Intelligent Damping
When intelligent damping is active, the HCS410 will briefly load the coil when
the HCS410 expects a command from the Base Station. This allows LC
circuits with a high Q to be used with the HCS410 and allows higher
communication rates.
3.2.9 LED Output
S2 is used as a LED output when this option is enabled.
3.2.10 Low Voltage Trip Point
The HCS410 can be used with either a 3V or a 6V battery. The low-voltage
trip point selects between the initial battery voltages. If the supply voltage
drops below approximately 4V (6V battery) and 2V (3V battery), the HCS410
sets the VLOW bit in a code hopping transmission. This gives the Base Station
the ability to warn the user if the bit is used. In addition to the VLOW bit being
set, the LED output is disabled when a low-voltage condition occurs, warning
the user to replace the battery.
3.2.11 Minimum 3 Transmissions
When a button is pressed on a transmitter, the HCS410 will normally
complete a single transmission. When a minimum of three transmissions are
enabled, at least three complete code words are transmitted, even if the
button is released.
2000 Microchip Technology Inc. DS51111B-page 15
HCS410
3.2.12 Overflow
There are two overflow bits available in the HCS410. An overflow bit is cleared
every time the 16-bit synchronization counter wraps from FFFF to 0000 (hex).
This extends the counter range from 64k transmissions to 192k transmissions.
The overflow bits cannot be reset unless the device is re-programmed.
3.2.13 RF Baud Rate
The HCS410 can communicate at four speeds in RF mode. The baud rate bits
select the nominal communication rate. These run from 00 being the slowest
(T
E = 400 µs) to 11 being the fastest (TE = 100 µs) communication rate. The
RF receiver module on the Base Station works best at the slow
communication value (400 µs) and may not work at all at the fastest
transmission rate.
3.2.14 Serial Number
The HCS410 has a 32-bit (8 hex digit) serial number that the user can select.
When checked, the auto-increment option increments the serial number if the
HCS410 is successfully programmed.
3.2.15 Transport Code
To program the HCS410, change the serial number, or the configuration word
inductively, the Base Station needs to send a 32-bit transport code after the
appropriate op-code has been sent. After the transport code has been
presented, the Base Station can send the data to be programmed into the
device. If the transport code presented to the HCS410 does not match the
transport code in the HCS410, the op-code is ignored.
This feature was added to prevent accidentally reprogramming the HCS410
inductively. The transport code is the 32 most significant bits of the SEED/
Key2.
During wire programming, the transport code being programmed into the
HCS410 is set in the Key Generation tab of the Program dialog and does not
need to match the transport code currently in the HCS410. To inductively
program the HCS410 or change the serial number, the enter the transport
code currently in the transponder in the Transport Code tab of the Program
dialog.
3.2.16 Transmission Format
The HCS410 has two transmission formats available namely PWM and
Manchester.
Note: The Base Station only receives PWM transmissions.
Transponder Evaluation Kit User’s Guide
DS51111B-page 16 2000 Microchip Technology Inc.
3.2.17 User EEPROM
The HCS410 has 64 bits of user EEPROM. A 64-bit number can be entered
(16 hex digits) when programming the device.
When entering a 64-bit number, the data is mapped so that the last 8 bits are
programmed into USR0 and the first 8 bits are programmed to USR3. For
example: If entering a number such as 0123456789ABCDEF, the data is
mapped so that CDEF is programmed into USR0 and 0123 is programmed
into USR3.
3.3 Code Hopping Transmissions
The transponder can be used as an RF transmitter. To force a KEELOQ code
hopping transmission, activate any of the S inputs, S0, S1, S2 or a
combination of the S inputs (Note: certain button combinations cause a SEED
transmission, if enabled). A code hopping transmission has two portions – a
fixed portion and a code hopping portion.
The fixed portion contains the 2 QUE bits, 2 CRC bits, a VLOW bit, 4/0 button
status bits and 28/32-bit serial number. The encrypted information contains 4
button status bits, 12 discrimination bits and a 16-bit synchronization counter.
3.4 SEED Transmissions
If SEED transmissions are enabled in the Key Generation tab of the program
dialog, the transponder can be forced to transmit a SEED transmission in
place of a code hopping transmission. A SEED transmission takes 60 least
significant bits of the SEED from EEPROM and transmits them, followed by
the 4-bit button status information, VLOW bit, 2 CRC bits, and the 2 QUE bits.
SEED transmissions are activated by pulling S0, S1, and S2 high at the same
time. A delayed SEED transmission can be activated by pulling S0 and S1
high at the same time. A delayed SEED transmission transmits a normal code
hopping transmission for 2 seconds and then switches over to SEED
transmissions.
It is possible to erase all the transponders learned by the Base Station.
1. Press and hold the LEARN push button. The LEARN LED will switch on.
2. After about 8 seconds the LEARN LED will switch off indicating that all
of the transponders have been erased.
2000 Microchip Technology Inc. DS51111B-page 17
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 4. HCS412
4.1 Selecting an HCS412
The HCS412 can be selected as the transponder being evaluated in the
Transponder Select dialog (Setup > Xponder Select from the main menu).
4.2 Programming an HCS412
The Program dialog can be reached via Transponder > Program in the main
menu. The Program dialog allows the selections of the HCS412 options to be
programmed into the HCS412. After programming the HCS412, the Base
Station should be programmed so that it will be able to learn the HCS412. For
a more detailed description of all the features please consult the latest data
sheet. The following is a description of the options available in the Program
dialog.
•Anticollision/XPRF – Sets anticollision and RF transmission options in
transponder mode.
•ASK / FSK Control – An ASK and FSK control sequence has been
implemented.
•Code Word Blanking – Blanks out alternate code words enabling more
power to be transmitted in each transmission (FCC).
•Counter – 16-bit counter transmitted as part of a code hopping trans-
mission.
•Delayed Increment – Increments the synchronization counter by 12,
20 seconds after the last button is pressed. This can be used by the
decoder to defeat the latest attack on code hopping systems.
•Discrimination Value – 12-bit value transmitted as part of a code hop-
ping transmission.
•Extended Serial Number – The full 32-bit serial number is transmitted
in a code hopping transmission when the extended serial number is
enabled. If not enabled the S0:S1:S2 status replaces the most signifi-
cant nibble of the serial number in a transmission.
•IFF Baud Rate – Selects the communication speed used in inductive
communication.
•Intelligent Damping – Used in circuits with a high Q to enable faster
data communication rates.
•LC Demodulator – In this mode, data detected on the LCD line will be
output on the DATA line.
•Low Voltage Trip Point – Can be set to low (3V lithium battery) or high
(6V battery).
Transponder Evaluation Kit User’s Guide
DS51111B-page 18 2000 Microchip Technology Inc.
•Min 4 Tx – At least four complete RF transmissions are sent each time
the transponder is activated using the S0, S1 or S2 inputs.
•Overflow – Extends the range of the synchronization counter.
•RF Baud Rate – Selects the communication speed used in code hop-
ping mode.
•RF Enable – This option allows S2 to be to enable the RF circuitry dur-
ing RF transmissions.
•S2/LC Pin – This option allows the S2 line to be used as a button input
or as a transponder input.
•Serial Number – 32-bit serial number.
•Transmission Format – The transmission format is selectable
between PWM and Manchester Modulation.
•Transport Code – 28-bit transport code.
•User EEPROM – 64-bit user EEPROM.
•CANCEL push button – Discards the changes made and closes the
dialog.
•HELP push button – Brings up the online help.
•INDUCT PRGM push button – Programs the HCS412 with the data
selected inductively.
•OK push button – Accepts the settings selected but does not program
the HCS412 or Base Station.
•PRGM BASE push button – Programs the base with the appropriate
manufacturer's code, key generation source and algorithm, transmis-
sion format and speed so that it is able to communicate with an
HCS412 programmed with the settings as given.
•WIRE PRGM push button – Programs the HCS412 with the selected
data using the S2 and PWM lines. This can be done when the transmit-
ter is connected to the Base Station at J2.
For more information about communication problems, see Chapter 10.
2000 Microchip Technology Inc. DS51111B-page 19
HCS412
4.2.1 Advanced Options
Certain options should not be changed to ensure that the transponder can be
learned by the Base Station.These are:
•The code hopping transmission modulation format defaults to PWM
and can be changed on the Advanced Opts tab of the Program dialog.
•The oscillator tuning bits are set by the Base Station.
•The key/SEED options are set on the Key Generation tab of the Pro-
gram dialog.
•The synchronization counter is incremented and transmitted each
time the HCS412 transmits a code hopping transmission. The synchro-
nization counter is automatically set to 0000 by default.
•The discrimination values defaults to the least significant bit of the
serial number.
4.2.2 ASK/FSK Control
The HCS412 has the ability to send ASK/FSK control signals on S2 when
transmitting data.
4.2.3 Anticollision/XP RF
These two bits in the HCS412 are used to enable or disable anticollision mode
and enable or disable RF transmissions when in Transponder mode.
•None – Disables both anticollision and inductively activated RF trans-
missions to allow the HCS412 to work as a pure transponder in IFF
mode.
•Proximity Activated – When selected, the HCS412 sends out ACK
pulses when placed in a magnetic field. If the Base Station does not
received a response within 50 ms, the HCS412 transmits a code hop-
ping transmission for 2 seconds before returning to transponder mode.
•Anticollision – Places the Base Statin into anticollision mode. This
allows multiple transponders to be brought into the same field.
•RF Echo – When selected, all of the HCS412 transponder responses
are echoed on the PWM output.
Note: The HCS412 can only be inductively validated by the evaluation
kit’s Base Station mode in RF Echo mode. This is because the
inductive demodulation circuitry on the base is too slow for the
HCS412.
Transponder Evaluation Kit User’s Guide
DS51111B-page 20 2000 Microchip Technology Inc.
4.2.4 Code Word Blanking
When code word blanking is enabled, alternate code words are blanked. The
FCC limits the amount of power that can be transmitted in a 100 ms window.
Code word blanking is useful when trying to transmit the maximum power to a
receiver.
4.2.5 Delayed Increment
When delayed increment is enabled, the HCS410 increases the
synchronization counter by 12, 20 seconds after pressing the last push
button. This can be used to foil jam and scan techniques.
4.2.6 Discrimination Value
The HCS412 has a 10-bit discrimination value. The discrimination value forms
part of the encrypted portion of a code hopping transmission. A KEELOQ
decoder uses the discrimination value to validate the decrypted code.
4.2.7 Extended Serial Number
The serial number is 32 bits long. To transmit the full 32 bits of the serial
number this option must be enabled. If this option is disabled, a copy of the
function code (buttons pressed) are transmitted instead of the most significant
nibble of the serial number.
4.2.8 IFF Baud Rate
The HCS412 can communicate inductively at two speeds. The slow baud rate
has a nominal elemental period of 200 µs and a fast baud rate of 100 µs. The
demodulator circuitry has been optimized to work with the slow
communication rate (200 µs) and will not work at the fast communication rate.
4.2.9 Intelligent Damping
When intelligent damping is active the, HCS412 will briefly load the coil when
the HCS412 expects a command from the Base Station. This allows LC
circuits with high Q to be used with the HCS412 and allows higher
communication rates.
4.2.10 LC Demodulator
The HCS412 can be used as a low cost LC demodulator. A capacitor/coil is
connected across the LC0 and LC1 (LC1 is optional and is used for high
sensitivity applications) pins. The HCS412 will output the field that is being
received on the DATA pin.
2000 Microchip Technology Inc. DS51111B-page 21
HCS412
4.2.11 Low Voltage Trip Point
The HCS412 can be used with either a 3V or a 6V battery. The low-voltage
trip point selects between the initial battery voltages. If the supply voltage
drops below approximately 4V (6V battery) and 2V (3V battery), the HCS412
sets the VLOW bit in a code hopping transmission. This gives the Base Station
the ability to warn the user if the bit is used. In addition to the VLOW bit being
set, the LED output is disabled after a single flash when a low-voltage
condition occurs, warning the user to replace the battery.
4.2.12 Minimum 4 Transmissions
When a button is pressed on a transmitter the HCS412 will normally complete
a single transmission. When minimum of four transmissions are enabled, at
least four complete code words are transmitted, even if the button pressed is
released.
4.2.13 Overflow
There are two overflow bits available in the HCS412. An overflow bit is cleared
every time the 16-bit synchronization counter wraps from FFFF to 0000 (hex).
This extends the counter range from 64k transmissions to 192k transmissions.
The overflow bits cannot be reset unless the device is re-programmed.
4.2.14 RF Baud Rate
The HCS412 can communicate at four speeds in RF mode. The baud rate bits
select the nominal communication rate. These run from 00 being the slowest
(T
E = 400 µs) to 11 being the fastest (TE = 100 µs) communication rate. The
RF receiver module on the Base Station works best at the slow
communication value (400 µs) and may not work at all at the fastest
transmission rate.
4.2.15 RF Enable
When this bit is enabled, the S2/LC1 pin of the HCS412 doubles as the RF
enable control line for an ASK or FSK transmitter.
4.2.16 S2/LC Pin
Pin 3 on the HCS412 can be configured as a button input or as a transponder
input. When in transponder input mode, the resonant capacitor/coil is
connected across LC0 and LC1. This is the transponder's high sensitivity
mode.
Transponder Evaluation Kit User’s Guide
DS51111B-page 22 2000 Microchip Technology Inc.
4.2.17 Serial Number
The HCS412 has a 32-bit (8 hex digit) serial number that the user can select.
When checked, the auto-increment option increments the serial number if the
HCS412 is successfully programmed.
4.2.18 Transport Code
To program the HCS412, change the serial number, or the configuration word
inductively, the Base Station needs to send a 28-bit transport code after the
appropriate op-code has been sent. After the transport code has been
presented, the Base Station can send the data to be programmed into the
device. If the transport code presented to the HCS412 does not match the
transport code in the HCS412, the op-code will be ignored.
This feature was added to prevent accidentally reprogramming the HCS412
inductively. The transport code is the 28 most significant bits of the SEED/
Key2.
During wire programming, the transport code being programmed into the
HCS412 is set in the Key Generation tab of the Program dialog and does not
need to match the transport code currently in the HCS412. To inductively
program the HCS412 or change the serial number, the enter the transport
code currently in the transponder in the Transport Code tab of the Program
dialog.
4.2.19 Transmission Format
The HCS412 has two transmission formats available namely PWM and
Manchester.
4.2.20 User EEPROM
The HCS412 has 64 bits of user EEPROM. A 64-bit number can be entered
(16 hex digits) when programming the device.
When entering a 64-bit number, the data is mapped so that the last 8 bits are
programmed into USR0 and the first 8 bits are programmed to USR3. For
example: If entering a number such as 0123456789ABCDEF, the data is
mapped so that CDEF is programmed into USR0 and 0123 is programmed
into USR3.
Note: The Base Station only receives PWM transmissions.
2000 Microchip Technology Inc. DS51111B-page 23
HCS412
4.3 Code Hopping Transmissions
The transponder can be used as an RF transmitter. To force a KEELOQ code
hopping transmission, activate any of the S inputs, S0, S1, S2 or a
combination of the S inputs (Note: certain button combinations cause a SEED
transmission, if enabled). A code hopping transmission has two portions – a
fixed portion and a code hopping portion.
The fixed portion contains the 2 QUE bits, 2 CRC bits, a VLOW bit, 4/0 button
status bits and 28/32-bit serial number. The encrypted information contains 4
button status bits, 12 discrimination bits and a 16-bit synchronization counter.
4.4 SEED Transmissions
If SEED transmissions are enabled in the Key Generation tab of the Program
dialog, the user can force the Transponder to transmit a SEED transmission in
place of a code hopping transmission. A SEED transmission takes 60 least
significant bits of the SEED from EEPROM and transmits the, followed by the
4-bit button status information, VLOW bit, 2 CRC bits, and the 2 QUE bits.
SEED transmissions are activated by pulling S0, S1, and S2 high at the same
time. A delayed SEED transmission can be activated by pulling S0 and S1
high at the same time. A delayed SEED transmission transmits a normal code
hopping transmission for 2 seconds and then switches over to SEED
transmissions.
It is possible to erase all the transponders learned by the Base Station.
1. Press and hold the LEARN push button. The LEARN LED will switch on.
2. After about 8 seconds the LEARN LED will switch off indicating that all
the transponders have been erased.
Transponder Evaluation Kit User’s Guide
DS51111B-page 24 2000 Microchip Technology Inc.
NOTES:
2000 Microchip Technology Inc. DS51111B-page 25
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 5. Other Dialog Boxes
5.1 User EEPROM Dialog
The 64-bit user EEPROM and 32-bit serial number on the HCS410 or
HCS412 can be read and modified in IFF mode. The User EEPROM dialog
allows you to read or write to the user EEPROM on the HCS410 and HCS412.
The User EEPROM dialog can be opened through the Transponder >
EEPROM in the main menu.
To read the user EEPROM press the READ push button. If there is a
transponder in the field, this will read all of the user information.
The user EEPROM can be modified as needed and written by pressing the
WRITE push button. To write to the transponder’s serial number, the Base
Station needs to have the transport code that was originally programmed into
the transponder.
The transport code should be entered to allow the serial number to be
changed. If the transport code entered does not match the transport code in
the transponder, the serial number will not be modified.
The command status line lets shows whether the read/write passed or failed.
For more information about communication problems, see Chapter 10.
5.2 IFF Dialog
The IFF dialog can be opened by selecting Transponder > IFF from the main
menu. This option enables a manual operation of a challenge/response with a
transponder in the field. To do this, select the key and algorithm to be used for
the IFF and enter a 32-bit challenge.
It is important to note that unless the 2-Key IFF mode is selected in the Key
Generation tab at the Program dialog, the Key2 for an IFF will be disabled.
After selecting an algorithm, selecting a key and entering the 32-bit challenge
the hit the IFF push button. The Base Station will attempt to do an IFF with a
transponder in the field. The IFF results text box gives information about the
result of the IFF.
The HCS412 has an “IFF Hop” command. When the HCS412 receives this
command from the Base Station, the HCS412 will build the 32-bit code
hopping portion of a transmission. For example: The counter will be
incremented and encrypted along with the discrimination value and function
code.
For more information about communication problems, see Chapter 10.
Note: To use Key2 successfully, both manufacturers codes should be the
same in the Key Generation tab of the Program dialog.
Transponder Evaluation Kit User’s Guide
DS51111B-page 26 2000 Microchip Technology Inc.
5.3 Monitor IFF Dialog
When the Base Station is in stand-alone mode, the Base Station will dump the
serial number, challenge sent, the HCS410s or HCS412s response, and the
decrypted response to the serial port, even if the encoder is not learned.
RF transmissions received by the Base Station in stand-alone mode are also
dumped to the serial port and can be seen in the Monitor IFF dialog.
This can be monitored by the user in the Monitor IFF dialog (Transponder >
Monitor IFF).
2000 Microchip Technology Inc. DS51111B-page 27
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 6. Configuration File
6.1 Configuration File Overview
The evaluation kit uses a configuration file to save the user-selectable
settings. The configuration file that was last used is loaded each time the
program is started.
6.2 New Setup
To load the default setup, select File > New from the main menu.
6.3 Load Setup
To load a previously saved configuration file, select File > Load Setup from the
main menu.
6.4 Save Setup
To save the current configuration, select File > Save Setup from the main
menu.
6.5 Save Setup As
To save the current configuration file under a different name and directory,
select File > Save Setup from the main menu.
Transponder Evaluation Kit User’s Guide
DS51111B-page 28 2000 Microchip Technology Inc.
NOTES:
2000 Microchip Technology Inc. DS51111B-page 29
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 7. Key Generation
7.1 Key Generation Overview
Key generation is used to generate keys for KEELOQ encoders. The encoder
uses its key to generate responses to IFF challenges and to encrypt the code
hopping portion of a transmission when used as a transmitter. The HCS410
and HCS412 both have two keys available. The first of the keys is used to
encrypt the code hopping portion of the key and to do any of the IFF functions
when an IFF is performed using Key1.
Key2 can be used either as a second IFF key or as a SEED in a SEED
transmission. The keys are generated when the encoder is programmed. Key
generation in KEELOQ systems has three parts: the key generation source, the
key generation algorithm, and the manufacturer’s code.
The key generation source is either the encoder’s serial number or the
encoder’s SEED. Normal key generation uses the encoder’s serial number as
the source. Secure learn uses the encoder’s SEED as a source.
The manufacturer’s code is a 64-bit value used to create a unique relationship
between the key generation source and the encoder key.
The key generation method used when programming the Base Station or a
transponder is selected on the Key Generation tab in the Program dialog
(Transponder > Program). Note that in order to use secure learn, the second
key is used as a SEED,. Only one key is available for IFF functions. This also
implies that if two keys are used for IFF, key generation must be either simple
or normal key generation because enabling 2-key mode in the encoder
disables SEED transmissions.
7.2 Manufacturer’s Code
The 64-bit manufacturer’s code is used in key generation for one or both of
the encoder’s keys. The manufacturer’s code creates a unique relationship
between key generation source and the encoder key. If two manufacturers use
the same source (e.g., serial number 1111) and algorithm (i.e., decryption),
the key generation process will produce two completely different encoder keys
for the two manufacturer's because of the different manufacturer’s code.
Encoders for the two different manufacturers are not interchangeable. This
prevents cloning of transmitters. If two manufacturers decide to work together,
they will have to share a manufacturer's code. The manufacturer's code is
central to system security and should be kept as a closely guarded secret.
The manufacturer's code is entered in the Key Generation tab in the Program
dialog (Transponder > Program).
Transponder Evaluation Kit User’s Guide
DS51111B-page 30 2000 Microchip Technology Inc.
7.3 Key Generation Algorithm
There are two key generation algorithms currently supported by Microchip.
The first of these is the decryption algorithm. The second is the XOR
algorithm. Both algorithms use the manufacturer’s code to create a unique
link between the key generation source and the encoder key. The
Transponder Evaluation Kit only supports the Decryption algorithm.
7.4 Key Generation Source
The source used in key generation is either the serial number of the encoder
or the SEED of the encoder. Using the SEED (secure learn) as the source,
requires a SEED transmission during the learn process.
7.5 SEED/IFF2
The HCS410 and HCS412 encoders have a 64-bit space that can be used as
either a SEED during a SEED transmission or as a second IFF key. The
selection can be made in the Key Generation tab in the Program dialog
(Transponder > Program).
This space is also used as the transport code which is used to protect the
encoder from accidently being programmed in IFF mode. The Seed/Key2 is
used as the transport code regardless of the setting of SEED/IFF2.
No SEED – 1 Key – This option disables the use of the area, completely
disabling both SEED transmissions and the areas used as a second key.
Limited SEED – The SEED transmissions will be disabled when the
synchronization counter goes over 256 when limited SEED transmissions are
enabled. Only one key is available for IFF authentication.
SEED – SEED transmissions are always enabled in this mode. Only one key
is available for IFF authentication.
2 Key IFF – SEED transmissions are disabled and the transponder has two
keys for IFF authentication available.
7.6 Simple Learn
Simple learn uses a single key for all the encoders in a system. This key is the
manufacturer's code. This method of key generation is less secure than either
normal learn or secure learn because once the encryption key for one
encoder in the system is known, the encryption key for all encoders in the
system is known. Simple learn is useful in applications where convenience is
a high priority and security is nominal.
2000 Microchip Technology Inc. DS51111B-page 31
Key Generation
7.7 Normal Learn
Normal learn uses the serial number of the encoder during key generation to
generate the key. When learning the encoder onto a receiver/Base Station,
the receiver needs to either read the serial number (IFF mode) or receive a
valid transmission (RF mode). Thereafter, a key can be generated using the
decryption algorithm and the manufacturer’s code.
7.8 Secure Learn
Secure learn uses a SEED transmission from an encoder to generate the
encoder key. Only a single IFF key is used when Implementing key generation
via secure learn. The location of the second IFF key is used to store the
SEED.
Generating the encoder key can be accomplished between the decryption
algorithm or the XOR algorithm.
Note: The Base Station only supports the decryption algorithm.
Transponder Evaluation Kit User’s Guide
DS51111B-page 32 2000 Microchip Technology Inc.
NOTES:
2000 Microchip Technology Inc. DS51111B-page 33
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 8. Communication
8.1 Serial Port Selection
The PC can be connected to the Base Station via serial ports COM1 through
COM4. Serial port selection is established in the Select Serial Port dialog.
Once the connection is established, test the communication between the
Base Station and the PC by pressing the TEST COMS push button.
If the connection is working, click OK to accept the selection. Press Cancel to
discard the changes and leave the dialog.
For more information about communication problems, see Chapter 10.
Transponder Evaluation Kit User’s Guide
DS51111B-page 34 2000 Microchip Technology Inc.
NOTES:
2000 Microchip Technology Inc. DS51111B-page 35
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 9. Demonstrations
9.1 Overview
The demonstrations are listed in the main menu. The demonstrations consist
of five steps. The first step in the demonstration gives a brief introduction. If
the setup (Low-Voltage Trip, IFF Baud Rate, etc.) that is being used has
changed between the time the program was started and the demo is started,
the software displays a prompt to save the setup before continuing.
The setup is changed during the demo in order to provide the opportunity to
see what the settings used during the demo are by going to the Program
dialog (Transponder > Program).
There are five control buttons in the Demonstration dialogs as described
below:
The PREVIOUS button goes back one step during the demo. This allows for
checking or repeating a previous step.
The SKIP button moves to the next step with out completing the programming
necessary to successfully complete the current step. This can be used to step
through the demo, without having the Base Station connected to a PC.
The NEXT button moves to the next step, performing the actions the step
requires, typically programming of the Base Station or the transponder.
The CANCEL button aborts the demonstration.
The HELP button brings up the online help.
After the demonstration has been completed, the configuration will be
changed. The transponder setup can be seen in the Program dialog.
Additional transponders can be programmed at this point.
9.1.1 HCS410 Batteryless Demo
The HCS410 batteryless demonstration sets the Base Station up to work with
the small, batteryless HCS410 transponder that is supplied with the
evaluation kit. The small transponder is not programmed.
After the demonstration the user will be able to learn and validate the
batteryless transponder. After the transponder has been learned the
VALID_TOKEN LED will light up on the Base Station each time the
transponder is brought into the field. The transponder is programmed with
anti-collision off, but there is no reason why anti-collision cannot be used.
The battery powered transmitter / transponder can also be used during this
demonstration – if the user chooses not to use the battery powered
transmitter / transponder the user should skip over the programming stage.
Transponder Evaluation Kit User’s Guide
DS51111B-page 36 2000 Microchip Technology Inc.
9.1.2 HCS410 Proximity Activation Demo
The HCS410 proximity activation demonstration will set the Base Station and
program the HCS410 transmitter / transponder to work in proximity activated
mode. When used as a transmitter the HCS410 will send out a transmission
when a button (S0, S1 or S2 is pressed).
When the HCS410 is programmed with proximity activation enabled the
HCS410 will send out a single code hopping word when the HCS410 is
brought into a magnetic field and no command is received within 50ms of the
first acknowledge pulse being sent out by the HCS412.
After the HCS410 is learned onto the Base Station the proximity activation
can be seen working whenever the PROX_RF LED illuminates. To force a
proximity activated transmission remove JP2. This will prevent the Base
Station from receiving data from the HCS410 transmitter / transponder
inductively. The Base Station doesn’t receive the HCS410’s acknowledge
pulses and the transponder is not detected. As a result the Base Station
doesn’t send out a command, causing the HCS410 to send a proximity
activated transmission.
9.1.3 HCS410 RF Echo Demo
The HCS410 RF echo demonstration sets the Base Station and HCS410
transmitter/transponder to work with RF echo mode enabled. When in RF
Echo mode the HCS410 sends the response to any inductive command
received out twice, first on the inductive lines and then on the RF output.
RF Echo mode is used when no inductive receiver is present or when the
inductive receiver is out of range. This can be checked by removing either JP2
(disable the inductive path back to the microcontroller) or removing JP3
(disables the RF path back to the microcontroller).
When in RF Echo mode, anticollision mode is also active.
9.1.4 HCS412 Proximity Activation Demo
The HCS412 proximity activation demonstration sets the Base Station and
programs the HCS412 Transmitter/Transponder to work in proximity activated
mode. When used as a transmitter the HCS412 sends out a transmission
when a button (S0, S1 or S2) is pressed.
When the HCS412 is programmed with proximity activation enabled, the
HCS412 sends out a single code hopping word when the HCS412 is brought
into a magnetic field and no command is received within 50 ms of the first
acknowledge pulse being sent out by the HCS412.
After the HCS412 is learned onto the Base Station the proximity activation
can be seen working whenever the PROX_RF LED illuminates. To force a
proximity activated transmission, remove JP2. This will prevent the Base
Station from receiving data from the HCS412 Transmitter/Transponder
inductively. The Base Station doesn’t receive the HCS412s acknowledge
2000 Microchip Technology Inc. DS51111B-page 37
Demonstrations
pulses and the transponder is not detected. As a result, the Base Station
doesn’t send out a command. This causes the HCS412 to send a proximity
activated transmission.
9.1.5 HCS412 Passive Entry Demo
The HCS412 passive entry demonstration sets the Base Station and HCS412
transmitter/transponder to work in passive entry mode. When in passive entry
mode, the HCS412 sends the response to any inductive command received
out twice, first on the RF output and then on the LC output.
Passive entry mode can be used when no inductive receiver is present or
when the inductive receiver is out of range. This can be checked by removing
either JP2 (disable the inductive path back to the microcontroller) or removing
JP3 (disables the RF path back to the microcontroller).
When in passive entry mode, anticollision mode is also active.
Note: The Base Station cannot inductively validate the HCS412
transponder in proximity activated mode.
Transponder Evaluation Kit User’s Guide
DS51111B-page 38 2000 Microchip Technology Inc.
NOTES:
2000 Microchip Technology Inc. DS51111B-page 39
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Chapter 10. Fault Finding
10.1 Fault Finding
If, after giving a PC command (program, IFF, Read, Write, etc.) the command
fails, check the following:
1. Check that the Base Station is powered up.
2. Check that the serial cable is securely connected to the Base Station and
PC.
3. Check that the correct serial port has been selected.
4. Check that the Base Station has been programmed with the current
setup (communication speed and protocol).
5. Check that the transponder is in the field.
6. Check that the jumpers at JP1, JP2 (across pins 1 & 2), and JP3 are
inserted.
If, after programming a transponder, and the transponder fails to learn the
transponder:
1. Check the settings above.
2. Check that the Base Station has been programmed. Press the PRGM
BASE button in the Transponder > Program dialog after programming
the transponder.
3. Check that the transponder was programmed correctly.
4. Check that the IFF baud rate is set to the slowest setting.
Failed to program a long range transmitter/transponder when plugged into the
board:
1. Check that jumper at JP2 is placed across pins 2 and 3.
Fails to receive RF transmissions:
1. Check that PWM transmission format is selected.
2. Check that JP3 is inserted.
3. Check that the transmitter is programmed with an RF transmission rate
of 400 µs or 200 µs.
Fails to validate a transponder inductively.
1. Check that the IFF baud rate is set to 200 µs.
2. If using an HCS412, check that RF Echo mode is selected in the Options
> Anticollision/XPRF dialog. The Base Station’s reception circuitry is too
slow to validate an HCS412 inductively and relies on RF talk back for val-
idation.
Transponder Evaluation Kit User’s Guide
DS51111B-page 40 2000 Microchip Technology Inc.
NOTES:
2000 Microchip Technology Inc. DS51111B-page 41
TRANSPONDER EVALUATION KIT
USER’S GUIDE
Appendix A. Schematic Diagrams
Figure A.1: Transponder Base Station (BASE_V3.0)
L1
COIL 500V
WB1528
coildrv
12V
DATA_B2T
LC-COIL
LC-CAP
OSC
VCC
GEN_5V
12V DG_5V
AN_5V
D1
1N5820
CASE 267-03
demod
AN_5V
BS_RF
DATA_T2B
PIC16C63
OSC
DATA_B2T
DATA_T2B
12V
C3
10nF 500V
2225
+
4
+
2 +3
+1
+
5
J1
MDC-034
12V
VOLTAGE
HIGH
Transponder Evaluation Kit User’s Guide
DS51111B-page 42 2000 Microchip Technology Inc.
Figure A.2: Transponder Base Station (GEN_5V)
12V
R1
22R
C4
1u 16V
EIA Size A
VIN
3
VOUT
1
G
N
D
2
U2
NJM78L05UA
SOT-89
C5
100n 16V
C41
68u
EIA Size D
R71
1k
DG_5V
D14
POWER
Green LED
R2
22R
VIN
3
VOUT
1
G
N
D
2
U1
NJM78L05UA
SOT-89
AN_5V
C40
68u
EIA Size D
C7
100n 16V
JMP1
JUMPER
C6
1u 16V
EIA Size A
JMP1 IS A "VIRTUAL" JUMPER USED TO SEPARATE ANALOG AND
DIGITAL GROUND NETLISTS ONLY AND IS TO BE SHORTED OUT.
123
1
SOT-89
2000 Microchip Technology Inc. DS51111B-page 43
Schematic Diagrams
Figure A.3: Transponder Base Station (demod)
R41
270R
AN_5V
R23
100R
D6
UF1007
BS_RF
2.5V
R27
470k
D4
LL4148 D5
LL4148
R28
1k
3
2 1
4
1
U7A
LM6036M
SOIC-14
R20
10k
R19
22k
5
6 7
4
1
1
U7B
LM6036M
SOIC-14
R33
10k
10
9 8
4
1
1
U7C
LM6036M
SOIC-14
R32
680R
R36
47k R37
47k
C24
18p
12
13 14
4
1
1
U7D
LM6036M
SOIC-14
R39
15k
C25
100p
R38
1k8
C22
1n
R35
270R
R31
6k8
C23
100n 16V
R18
220k
C18
1n
C43
10n
R22
10k
C19
100n 16V
R29
1k
D7
LM385-2.5
TO-92
R24
100R C21
1n5 500V
R25
1M
R26
1M
C42
10n
R58
N/C
R54
68k
R50
N/C
5
6
7
8
4U8B
LM358M
SOIC-8
R49
1k
R52
1k
HIGH
VOLTAGE C20
10n 500V
3
2
1
8
4U8A
LM358M
SOIC-8
C28
1n
C27
2n7
R55
68k
R48
1k
R47
4k7
R42
100k
D9
LL4148
DATA_T2B
R45
1k
R44
1k
Q8
2N7002A
SOT-23
C29
100n 16V
C30
100n 16V
1
+
-
+
-
+
-
+
-
+
-+
-
Envelope Detector
Buffer
Band Pass Filter Band Pass Filter Low Pass Filter
Schmidt Trigger
Transponder Evaluation Kit User’s Guide
DS51111B-page 44 2000 Microchip Technology Inc.
Figure A.4: Transponder Base Station (PIC16C66)
C38
100n 16V
VCC
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
J3
RF-MODULE
VCC
1
J9
ANTENNA-LEAD
Provide Strain Relief
VCC
VCC
C39
100n 16V
R66
10k
R67
10k
VCC
SW1
LEARN PB
RA0
2
RA1
3
RA2
4
RA3
5
RA4/T0CKI
6
RA5/SS
7
RC0/T1OSO/T1CKI
11
RC1/T1OSI/CCP2
12
RC2/CCP1
13
RC3/SCK/SCL
14
OSC1/CLKIN
9
OSC2/CLKOUT
10
VSS
8
VSS
19
VDD
20
MCLR/VPP
1
RB0/INT
21
RB122
RB223
RB324
RB425
RB526
RB627
RB728
RC7/RX/DT
18
RC6/TX/CK
17
RC5/SDO
16
RC4/SDI/SDA
15
U12
PIC16C66
28 LEAD SKINNY DIP
S0
S1
S3
S2
R70
10kSW2
RESET PB CS
1
CLK
2
DI
3
NC 6
NC 7
DO 4
V
C
C
8
V
S
S
5
U11
93C46B
8 LEAD DIP
R69
10k
1
J6
TP
JP3
RF OUT
R80
1k
RFIN
PWM
R59
1k
R61
1k R60
1k
R62
1k
D10
S0
D12
S1 D11
S2
D13
S3
SW3
POL PB
C31
27p
Y1
4 MHz C32
27p 1
J4
TP R82
10k
C35
1u 16V
C36
1u 16V
VCC
JP1
B2T OSC
DATA_B2T
5
9
4
8
3
7
2
6
1
P1
DB9 FEMALE
V+
2
DIN1
11
DIN2
10
ROUT1
12
ROUT2
9
C1+
1
C1-
3
V-
6
DOUT1
14
DOUT2
7
RIN113
RIN2 8
C2+ 4
C2- 5
V
C
C
1
6
G
N
D
1
5
U10
DS14C232TM
SOIC-16
TX1
1
J7
TP
JP2
T2B
1
J5
TP
DATA_T2B
R79
1k
1
J8
TP
C34
1u 16V
RX1
C37
1u 16V
R78
1k
D17
PROX_RF
C33
1u 16V
R77
1k
D15
VALID TOKEN D16
LEARN
R81
1k
D18
FIELD
R83
1k
VCC
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
16
J2
CON16A
12V
S3
S2
S1
S0
PWM
12V
LC0
1
1
1
2000 Microchip Technology Inc. DS51111B-page 45
Schematic Diagrams
Figure A.5: Transponder Base Station (coildrv)
Q6
MMBT3904
SOT-323
C16
100n 16V R13
680R
C17
3300u 25V
R17
0.47R 1Watt
12V
R14
150R
Q1
MTP23P06V
TO-220AB R16
1R 1WATT LC-COIL
HIGH
VOLTAGE
R76
N/C
LC-CAP
Q2
MTP50N06V
TO-220AB
Q7
MMBT3906
SOT-323
Q5
2N7002A
SOT-23
R75
N/C
ENHANCED FREQUENCY CIRCUIT
R11
10k
VCC 9
10 8
U4C
MC74HC00AD
SOIC-14
12
13 11
U4D
MC74HC00AD
SOIC-14
VCC
R15
680R
D3
MUR860
TO-220AC
Q4
MTW14N50E
TO-247AE
Q3
2N7002A
SOT-23
D
12
CLK
11 Q 9
Q 8
P
R
1
0
C
L
1
3
U5B
MC74HC74AD
SOIC-14
R84
100R
D
2
CLK
3 Q 5
Q 6
P
R
4
C
L
1
U5A
MC74HC74AD
SOIC-14
4
5 6
U4B
MC74HC00AD
SOIC-14
LOGIC HIGH = FIELD
LOGIC LOW = NO FIELD
DATA_B2T
VCC
ENHANCED FREQUENCY CIRCUIT
INSIDE THIS BOX
RESISTORS R74, R75 AND R76
SOLDER IN 0 OHM RESISTORS IF NOT U
S
C15
100n 16V
C13
100n 16V C14
100n 16V
VCC
R73
N/C
R72
0R
6 MHz
16 MHz
PI
11
RST
12
Q4 7
Q5 5
Q6 4
Q7 6
Q8 14
Q9 13
Q1015
Q12 1
Q13 2
Q14 3
PO 9
PO10
U6
74HC4060
SOIC-16
1
2 3
U4A
MC74HC00AD
SOIC-14
R12
10k
R74
N/C
OSC
SOLDER ONLY ONE: R72 OR R73
Transponder Evaluation Kit User’s Guide
DS51111B-page 46 2000 Microchip Technology Inc.
Figure A.6: HCS410 DIP Socket Long Range RF Transponder
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
16
CON16A
BT1
6V
C4
100nF
0805
VCC
R6
10R
0805
PWM
D2
LL4148
MiniMELF
VCC
SW1
S0
SW2
S1
S0
1
S1
2
S2/LED
3
LC1
4
VDD 8
LC0 7
PWM 6
VSS 5
U2
HCS410
DIP-8
LC0
PWM JP1
JUMPER
R2
47k
0805
Q1
BFR92A
SOT23
C2
2.2pF
0805
L1
20mm PCB TRACE
C1
470pF
0805
R1
47R
0805
VCC
R3
220R
0805
C3
12pF
0805
2
3
1
4
U1
SAW
42527
L2
TRANSPONDER COIL
1206
C6
N/C
1206
C5
1.5nF
1206
R7
220k
0805
R4
220R
0805 R5
220R
0805
C7
2.2uF
0805
SW3
S2
D1
HSMH-TX00
3528
1
NC
NC
T
T
J1
2000 Microchip Technology Inc. DS51111B-page 47
Schematic Diagrams
Figure A.7: HCS412 Credit Card Transmitter/Transponder
270
Vcc
12
34
Vcc
Transponder Evaluation Kit User’s Guide
DS51111B-page 48 2000 Microchip Technology Inc.
Figure A.8: HCS410 SOIC Short Range Transponder
1234
J1
CON4
Surface mount pads with .1" spacing
C3
2.2uF
0805
S0
1
S1
2
S2/LED
3
LC1
4
VDD 8
LC0 7
PWM
6
VSS 5
U1
HCS410
SOIC-8
R1
N/C
0805
C1
1.5nF
1206
C2
N/C
1206
L1
TRANSPONDER COIL
* SEE NOTE BELOW
* NOTE
B) COILCRAFT SURFACE MOUNT 1812LS-105 XKBC INDUCTOR
C) DALE IM-4 AXIAL LEAD INDUCTOR
TRANSPONDER COIL FOOTPRINTS FOR
A) CUSTOM FAIR RITE / EM2 FERRITE CORE INDUCTOR
2000 Microchip Technology Inc. DS51111B-page 49
TRANSPONDER EVALUATION KIT
USER’S GUIDE
A
algorithm ................................................... 12, 18
Anti Collision ............................................. 11, 17
B
battery .............................................................. 1
C
Code Word Blanking ................................ 11, 17
D
Damping ................................................... 11, 17
Delayed Increment ................................... 11, 17
E
erase .................................................. 10, 16, 23
extended serial number ............................ 11, 17
H
High Voltage ................................................. 5, 8
I
IFF .................................................. 1, 13, 19, 29
IFF2 ................................................................ 30
K
key generation .......................................... 29, 30
L
LEARN ............................................... 10, 16, 23
learn ............................................................. 1, 9
Low Voltage Trip Point ................. 11, 14, 17, 21
M
manufacturer’s code ........................... 12, 18, 29
Monitor ............................................................. 8
N
Normal learn ................................................... 31
O
outputs .............................................................. 5
Overflow ................................................... 11, 18
P
PC ................................................................ 2, 8
poll .................................................................... 5
power ................................................................ 1
PWM ................................................................. 5
R
RESET .............................................................. 5
RF ......................................................... 1, 11, 18
RF Baud Rate ........................................... 12, 18
S
S0 ..................................................... 5, 6, 11, 18
S1 ......................................................... 5, 11, 18
S2 ......................................................... 5, 11, 18
Secure learn ................................................... 31
SEED ........................................................ 29, 30
serial number ........................................ 6, 12, 18
serial port .......................................................... 1
Simple learn .................................................... 30
Software Installation ......................................... 1
source ............................................................. 29
stand alone ................................................... 1, 8
T
transmission ........................................ 5, 6, 9, 30
transmitter ................................................. 5, 6, 9
Transport Code ......................................... 12, 18
U
user EEPROM .......................................... 12, 18
V
VALID TOKEN .............................................. 5, 6
Index
Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates.
It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by
Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights
arising from such use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with express written
approval by Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellectual property
rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other
trademarks mentioned herein are the property of their respective companies.
DS51111B-pa
g
e 50
2000 Microchip Technology Inc.
All rights reserved. © 2000 Microchip Technology Incorporated. Printed in the USA. 3/00 Printed on recycled paper.
AMERICAS
Corporate Office
Microchip Technology Inc.
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-786-7200 Fax: 480-786-7277
Technical Support: 480-786-7627
Web Address: http://www.microchip.com
Atlanta
Microchip Technology Inc.
500 Sugar Mill Road, Suite 200B
Atlanta, GA 30350
Tel: 770-640-0034 Fax: 770-640-0307
Boston
Microchip Technology Inc.
5 Mount Royal Avenue
Marlborough, MA 01752
Tel: 508-480-9990 Fax: 508-480-8575
Chicago
Microchip Technology Inc.
333 Pierce Road, Suite 180
Itasca, IL 60143
Tel: 630-285-0071 Fax: 630-285-0075
Dallas
Microchip Technology Inc.
4570 Westgrove Drive, Suite 160
Addison, TX 75248
Tel: 972-818-7423 Fax: 972-818-2924
Dayton
Microchip Technology Inc.
Two Prestige Place, Suite 150
Miamisburg, OH 45342
Tel: 937-291-1654 Fax: 937-291-9175
Detroit
Microchip Technology Inc.
Tri-Atria Office Building
32255 Northwestern Highway, Suite 190
Farmington Hills, MI 48334
Tel: 248-538-2250 Fax: 248-538-2260
Los Angeles
Microchip Technology Inc.
18201 Von Karman, Suite 1090
Irvine, CA 92612
Tel: 949-263-1888 Fax: 949-263-1338
New York
Microchip Technology Inc.
150 Motor Parkway, Suite 202
Hauppauge, NY 11788
Tel: 631-273-5305 Fax: 631-273-5335
San Jose
Microchip Technology Inc.
2107 North First Street, Suite 590
San Jose, CA 95131
Tel: 408-436-7950 Fax: 408-436-7955
AMERICAS (continued)
Toronto
Microchip Technology Inc.
5925 Airport Road, Suite 200
Mississauga, Ontario L4V 1W1, Canada
Tel: 905-405-6279 Fax: 905-405-6253
ASIA/PACIFIC
China - Beijing
Microchip Technology, Beijing
Unit 915, 6 Chaoyangmen Bei Dajie
Dong Erhuan Road, Dongcheng District
New China Hong Kong Manhattan Building
Beijing, 100027, P.R.C.
Tel: 86-10-85282100 Fax: 86-10-85282104
China - Shanghai
Microchip Technology
Unit B701, Far East International Plaza,
No. 317, Xianxia Road
Shanghai, 200051, P.R.C.
Tel: 86-21-6275-5700 Fax: 86-21-6275-5060
Hong Kong
Microchip Asia Pacific
Unit 2101, Tower 2
Metroplaza
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: 852-2-401-1200 Fax: 852-2-401-3431
India
Microchip Technology Inc.
India Liaison Office
No. 6, Legacy, Convent Road
Bangalore, 560 025, India
Tel: 91-80-229-0061 Fax: 91-80-229-0062
Japan
Microchip Technology Intl. Inc.
Benex S-1 6F
3-18-20, Shinyokohama
Kohoku-Ku, Yokohama-shi
Kanagawa, 222-0033, Japan
Tel: 81-45-471- 6166 Fax: 81-45-471-6122
Korea
Microchip Technology Korea
168-1, Youngbo Bldg. 3 Floor
Samsung-Dong, Kangnam-Ku
Seoul, Korea
Tel: 82-2-554-7200 Fax: 82-2-558-5934
ASIA/PACIFIC (continued)
Singapore
Microchip Technology Singapore Pte Ltd.
200 Middle Road
#07-02 Prime Centre
Singapore, 188980
Tel: 65-334-8870 Fax: 65-334-8850
Taiwan
Microchip Technology Taiwan
10F-1C 207
Tung Hua North Road
Tai pei, Tai wa n
Tel: 886-2-2717-7175 Fax: 886-2-2545-0139
EUROPE
Denmark
Microchip Technology Denmark ApS
Regus Business Centre
Lautrup hoj 1-3
Ballerup DK-2750 Denmark
Tel: 45 4420 9895 Fax: 45 4420 9910
France
Arizona Microchip Technology SARL
Parc d’Activite du Moulin de Massy
43 Rue du Saule Trapu
Batiment A - ler Etage
91300 Massy, France
Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Germany
Arizona Microchip Technology GmbH
Gustav-Heinemann-Ring 125
D-81739 München, Germany
Tel: 49-89-627-144 0 Fax: 49-89-627-144-44
Italy
Arizona Microchip Technology SRL
Centro Direzionale Colleoni
Palazzo Taurus 1 V. Le Colleoni 1
20041 Agrate Brianza
Milan, Italy
Tel: 39-039-65791-1 Fax: 39-039-6899883
United Kingdom
Arizona Microchip Technology Ltd.
505 Eskdale Road
Winnersh Triangle
Wokingham
Berkshire, England RG41 5TU
Tel: 44 118 921 5858 Fax: 44-118 921-5835
03/23/00
WORLDWIDE SALES AND SERVICE
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999. The
Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs and microperipheral
products. In addition, Microchip’s quality
system for the design and manufacture of
development systems is ISO 9001 certified.
