ADT7320UCPZ AD [Analog Devices], ADT7320UCPZ Datasheet - Page 16

• Manufacturer Part Number: ADT7320UCPZ
• Manufacturer: AD [Analog Devices]

ADT7320
TEMPERATURE VALUE REGISTER
The temperature value register stores the temperature measured
by the internal temperature sensor. The temperature is stored as
a 16-bit twos complement format. The temperature is read back
from the temperature value register (Register Address 0x02) as a
16-bit value.
Bit 2, Bit 1, and Bit 0 are event alarm flags for T
T
to a 16-bit digital value, Bit 2, Bit 1, and Bit 0 are no longer used
as flag bits and are, instead, used as the LSB bits for the extended
digital value.
Table 9. Temperature Value Register (Register Address 0x02)
Bit
[0]
[1]
[2]
[3:7]
[8:14]
[15]
Table 10. ID Register (Register Address 0x03)
Bit
[2:0]
[7:3]
Table 11. T
Bit
[15:0]
LOW
. When the ADC is configured to convert the temperature
CRIT
Default Value
0
0
0
00000
0000000
0
Default Value
XXX
11000
Default Value
0x4980
Setpoint Register (Register Address 0x04)
Type
R
R
R
R
R
R
Type
R
R
Type
R/W
Name
T
T
T
Temp
Temp
Sign
Name
Revision ID
Manufacture ID
Name
T
LOW
HIGH
CRIT
CRIT
CRIT
flag/LSB2
flag/LSB0
flag/LSB1
, T
HIGH
, and
Description
16-bit critical overtemperature limit, stored in twos complement format.
Sign bit, indicates if the temperature value is negative or positive.
Description
Flags a T
(13-bit resolution). When the temperature value is below T
Contains the Least Significant Bit 0 of the 15-bit temperature value if the
configuration register, Register Address 0x01[7] = 1 (16-bit resolution).
Flags a T
(13-bit resolution). When the temperature value is above T
Contains the Least Significant Bit 1 of the 15-bit temperature value if the
configuration register, Register Address 0x01[7] = 1 (16-bit resolution).
Flags a T
(13-bit resolution). When the temperature value exceeds T
Contains the Least Significant Bit 2 of the 15-bit temperature value if the
configuration register, Register Address 0x01[7] = 1 (16-bit resolution).
Temperature value in twos complement format.
Temperature value in twos complement format.
Rev. PrA | Page 16 of 24
Description
Contains the silicon revision identification number.
Contains the manufacturer identification number.
LOW
HIGH
CRIT
event if the configuration register, Register Address 0x01[7] = 0
event if the configuration register, Register Address 0x01[7] = 0
event if the configuration register, Register Address 0x01[7] = 0
ID REGISTER
This 8-bit read-only register (Register Address 0x03) stores
the manufacturer ID in Bit 7 to Bit 3 and the silicon revision in
Bit 2 to Bit 0.
T
The 16-bit T
the critical overtemperature limit value. A critical overtemperature
event occurs when the temperature value stored in the temperature
value register exceeds the value stored in this register. The CT
pin is activated if a critical overtemperature event occurs. The
temperature is stored in twos complement format with the MSB
being the temperature sign bit.
The default setting for the T
CRIT
SETPOINT REGISTER
CRIT
setpoint register (Register Address 0x04) stores
Preliminary Technical Data
CRIT
setpoint is 147°C.
CRIT
HIGH
LOW,
, this bit it set to 1.
, this bit it set to 1.
, this bit it set to 1.