Temperature Sensor With Eeprom, Se97B; Temperature Sensor, Se97B; Eeprom, Se97B - TQ-Systems TQMLX2160A Preliminary User's Manual

4.6.2

Temperature sensor with EEPROM, SE97B

4.6.2.1

Temperature sensor, SE97B

A temperature sensor SE97B is assembled on the TQMLX2160A, which measures the environmental temperature.
 The temperature sensor is connected to I2C1 and has I
Other I 2 C addresses see chapter 4.9.2.
The accuracy of the temperature sensor is as follows:
• Max. ±1 °C between +75 °C and +95 °C
• Max. ±2 °C between +40 °C and +125 °C
• Max. ±3 °C between –40 °C and +125 °C
Signal EVENT_TEMPSENSOR# of the temperatures sensor is routed to the TQMLX2160A connector X3-B99.
The signal has an Open Drain output, an optional Pull-Up to 3.3 V can be assembled on the TQMLX2160A.
4.6.2.2

EEPROM, SE97B

The SE97B is connected to the I2C1 bus of the LX2160A and contains a 2 Kbit (256 × 8 Bit) EEPROM.
In this EEPROM TQMLX2160A-specific data is stored, see Table 4. The user can also store own data in this EEPROM.
The EEPROM is divided into two parts. The lower 128 bytes (00h to 7Fh) can be Permanent Write Protected (PWP) or Reversible
Write Protected (RWP) by software. The upper 128 bytes (80h to FFh) are not write protected and can be used for general
purpose data storage. The EEPROM can be accessed with the following two I
• EEPROM (Normal Mode):
• EEPROM (Protected Mode):
Other I 2 C addresses see chapter 4.9.2.
In the EEPROM, TQMLX2160A-specific data is stored. It is, however, not essential for the correct operation of the TQMLX2160A.
The user can delete or change the data, but this is not recommended.
In the following table, the parameters stored in the EEPROM are shown.
Table 4: TQMLX2160A-specific data in the EEPROM
Offset Payload (byte)
0x00
Variable
0x20
6
(10)
0x30
8
(10)
0x40
Variable
0x80
–
Preliminary User's Manual l TQMLX2160A UM 0002 l © 2020, TQ-Systems GmbH
0x57 / 101 0111b
0x37 / 011 0111b
Padding (byte) Size (byte)
Variable 32
(10)
10 16
(10) (10)
8 16
(10) (10)
Variable 64
(10)
– 8,064
(10)
C address 0x1F / 001 1111b
2
C addresses.
2
Type
Binary Hard Reset Configuration Word (HRCW), (optional)
Binary MAC address
ASCII Serial number
ASCII Order code
– (Unused)
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