Datasheet

Data Sheet ADT7310
Rev. A | Page 15 of 24
CONFIGURATION REGISTER
This 8-bit read/write register stores various configuration modes
for the ADT7310, including shutdown, overtemperature and
undertemperature interrupts, one-shot, continuous conversion,
interrupt pins polarity, and overtemperature fault queues.
Table 8. Configuration Register (Register Address 0x01)
Bit
Default
Value Type Name Description
[1:0] 00 R/
W
Fault queue These two bits set the number of undertemperature/overtemperature faults that can
occur before setting the INT and CT pins. This helps to avoid false triggering due to
temperature noise.
00 = 1 fault (default).
01 = 2 faults.
10 = 3 faults.
11 = 4 faults.
2 0 R/
W
CT pin polarity This bit selects the output polarity of the CT pin.
0 = active low.
1 = active high.
3 0 R/
W
INT pin polarity This bit selects the output polarity of the INT pin.
0 = active low.
1 = active high.
4 0 R/
W
INT/CT mode This bit selects between comparator mode and interrupt mode.
0 = interrupt mode.
1 = comparator mode.
[6:5] 00 R/
W
Operation mode These two bits set the operational mode for the ADT7310.
00 = continuous conversion (default). When one conversion is finished, the ADT7310
starts another.
01 = one shot. Conversion time is typically 240 ms.
10 = 1 SPS mode. Conversion time is typically 60 ms. This operational mode reduces the
average current consumption.
11 = shutdown. All circuitry except interface circuitry is powered down.
7 0 R/
W
Resolution This bit sets up the resolution of the ADC when converting.
0 = 13-bit resolution. Sign bit + 12 bits gives a temperature resolution of 0.0625°C.
1 = 16-bit resolution. Sign bit + 15 bits gives a temperature resolution of 0.0078125°C.