Data Sheet

17
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HTE501
6.8 Break Command (0x3093)
The periodic measurement mode can be stopped using the break command. After finishing an ongoing
measurement, the sensor will enter the idle mode. An ongoing measurement can delay the transition into
the idle mode.
Command CMD Hex Code
Break 0x3093
I²C
Datenstruktur
7654321 76543210 76543210
S
W
0
A
0
A
0
A
0
P
R / W
I2C ADDRESS
CMD MSB=0x30
16 BIT COMMAND
CMD LSB=0x93
ASTRID_I2C_Befehle_version2 - Kopie / 0x3093 20.09.2021 \ Haider A.
Figure 17: Break command
A single measurement (command) or a reset (command or power-up) both stop the periodic measurement,
too.
6.9 Reset Commands (0x30A2, 0x06)
The slave supports multiple commands to reset the device. Once a reset command is received, the device
is completely reset, like a reset during power-up. During the reset time, the device will not respond to any
request on the I
2
C interface.
In order to execute the reset on a specific device, the command “Soft Reset” can be used. This forces the
system to execute the startup procedure without the need to remove the power supply. The protection will
be re-established with the “Soft Reset”.
Command CMD Hex Code
Soft reset 0x30A2
I²C
Datenstruktur
7654321 76543210 76543210
S
W
0
A
0
A
0
A
0
P
R / W
I2C ADDRESS
CMD MSB=0x30
16 BIT COMMAND
CMD LSB=0xA2
ASTRID_I2C_Befehle_version2 - Kopie / 0x30A2 20.09.2021 \ Haider A.
Figure 18: Soft reset
In order to reset all devices on the bus, the master can use the “General call” mode. This generates a reset
(system startup) in all devices on the bus which support this function. The effect is the same as for the
“Soft Reset” command.
Command Hex Code
Address byte 0x00
Second byte 0x06
I²C
Datenstruktur
76543210 76543210
S
A
0
A
0
P
Address b
y
te=0x00
Reset Command=0x06
General call 2nd byte
General call 1st byte
ASTRID_I2C_Befehle_version2 - Kopie / 0x06 20.09.2021 \ Haider A.
Figure 19: Reset through general call
In order to reset the I
2
C interface only, keep SDA high while toggling SCL nine times or more. This
must be followed by a start condition preceding the next command. This sequence does not affect any
configuration, status register or system status.