USER MANUAL
STM 550X / EMSIX
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ENOCEAN MULTI-SENSOR
© 2020 EnOcean | www.enocean.com F-710-017, V1.0
STM 550x / EMSIx User Manual | v1.0 | February 2020 | Page 51/79
The encoding for the SECURE LRN TELEGRAM bit field is shown in Table 11 below.
SECURE LRN TELEGRAM Secure LRN telegram
0b00 (Default)
Secure LRN Telegram (containing security key) enabled
0b01
Secure LRN Telegram (containing security key) disabled
0b10, 0b11
Reserved, do not use
Table 11
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SECURE LRN TELEGRAM bit field encoding
8.5.7
SECURITY_MODE
The register TX_POWER identifies the transmission power used by STM 550x. Figure 33 be-
low shows the structure of the TX_POWER register.
SECURITY_MODE (Default: 0x00)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RFU
SECURITY FORMAT
SECURITY MODE
Figure 33
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SECURITY_MODE register
The encoding for the SECURITY MODE bit field is shown in Table 12 below.
SECURITY MODE
Security Mode
0b00 (Default)
Standard, can be changed by the user with the LRN button
0b01
High Security, can be changed by the user with the LRN button
0b10
Standard, cannot be changed by the user with the LRN button
0b11
High Security, cannot be changed by the user with the LRN button
Table 12
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SECURITY MODE bit field encoding
The encoding for the SECURITY FORMAT bit field is shown in Table 13 below.
SECURITY FORMAT
Advertising Interval
0b00 (Default)
32 bit RLC and 32 bit CMAC
0b01
24 bit RLC and 24 bit CMAC
0b10, 0b11
Reserved, do not use
Table 13
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SECURITY FORMAT bit field encoding