USER MANUAL
STM 550 / EMSI
–
ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0
STM 550 / EMSI User Manual | v1.3 | September 2020 | Page 51/97
9.5
CONFIGURATION
The CONFIGURATION area allows configuring the device parameters and is therefore the
most important part of the NFC memory. Configuration registers larger than 8 bit use big
endian format, i.e. the most significant byte comes first.
Read or write access to the CONFIGURATION area is only possible after issuing a
PWD_AUTH command as described in chapter 8.4.8 using the correct 32 bit PIN code.
9.5.1
Using the NFC configuration functionality
Before making any changes to the default configuration, be sure to familiarize yourself with
the functionality of the device and the effect of the intended changes. STM 550 will not ac-
cept the setting of non-valid values for its parameters. If any parameter is non-valid then
all changes made will be rejected and the previous configuration will be restored.
9.5.2
CONFIGURATION area structure
The structure of the CONFIGURATION area is shown in Figure 31 below.
NFC
Address
Content
Byte 0
Byte 1
Byte 2
Byte 3
0x40
PRODUCT_ID (as characters in ASCII format)
Will be copied to NDEF Header
0x41
0x42
0x43
RFU
0x44
…
0x47
USER_KEY (128 Bit)
(Write Only - Will be reset to zero after it has been copied to internal memory)
Can be used as alternative security key instead of FACTORY_KEY
0x48
SECURITY_KEY_MODE
SECURITY_CFG
RFU
0x49
EEP
SIGNAL
LED_MODE
FUNCTIONAL_MODE
0x4A
STANDARD_TX_INTERVAL
RFU
0x4B
NFC_PIN_CODE
0x4C
THRESHOLD_CFG1
THRESHOLD_CFG2
LIGHT_SEN-
SOR_CFG
ACC_SENSOR_CFG
0x4D
SOLAR_ THRESHOLD
SOLAR_ TX_INTERVAL
0x4E
LIGHT_THRESHOLD
LIGHT_ TX_INTERVAL
0x4F
ACCELERATION_THRESHOLD
ACCELERATION _TX_INTERVAL
0x50
TEMPERATURE_THRESHOLD
TEMPERATURE _TX_INTERVAL
0x51
HUMIDITY_THRESHOLD
HUMIDITY _TX_INTERVAL
0x52
RFU
MAGNET_CONTACT_TX_INTERVAL
0x53
RFU
RFU
0x54
LIGHT_TEST_RESULT
RFU
Figure 31
–
CONFIGURATION area structure