The TMP139 powers up in continuous conversion
mode. In this mode, the device shall perform temperature conversions
every 125 ms as shown in Figure 7-5.
The application software can stop the conversion by clearing
bit 0 of the
MR26 register. When disabled, the device shall not
update the result registers. When the temperature sensor is
disabled, the host must wait for at least one active conversion
cycle for the disable to take effect before any other writes are
performed to the device. When the temperature sensor is re-enabled
for continuous conversion mode, the host must wait for at least one
conversion interval before reading the temperature results. During
this time, read to other registers may be performed.