adt7320ucpz-rl7 Analog Devices, Inc., adt7320ucpz-rl7 Datasheet - Page 14

• Manufacturer Part Number: adt7320ucpz-rl7
• Manufacturer: Analog Devices, Inc.

ADT7320
REGISTERS
The ADT7320 contains eight registers:
•
•
•
•
The status register, temperature value register, and the ID
register are read-only.
Table 6. ADT7320 Registers
Register Address
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
1
Table 7. Status Register (Register Address 0x00)
Bit(s)
[0:3]
[4]
[5]
[6]
[7]
X means don’t care.
A status register
A configuration register
Five temperature value registers
An ID register
Default Value
0000
0
0
0
1
Description
Status
Configuration
Temperature value
ID
T
T
T
T
CRIT
HYST
HIGH
LOW
setpoint
setpoint
setpoint
setpoint
Type
R
R
R
R
R
Name
Unused
T
T
T
RDY
LOW
HIGH
CRIT
Power-On Default
0x80
0x00
0x0000
0xCX
0x4980 (147°C)
0x05 (5°C)
0x2000 (64°C)
0x0500 (10°C)
Description
Reads back 0.
This bit is set to 1 when the temperature goes below the T
clears to 0 when the status register is read and/or when the temperature measured goes
back above the limit set in the T
This bit is set to 1 when the temperature goes above the T
clears to 0 when the status register is read and/or when the temperature measured goes
back below the limit set in the T
This bit is set to 1 when the temperature goes above the T
clears to 0 when the status register is read and/or when the temperature measured goes
back below the limit set in the T
This bit goes low when the temperature conversion result is written into the temperature
value register. It is reset to 1 when the temperature value register is read. In one-shot and
1 SPS modes, this bit is reset after a write to the operation mode bits.
1
Rev. PrB | Page 14 of 26
STATUS REGISTER
This 8-bit read-only register (Register Address 0x00) reflects the
status of the overtemperature and undertemperature interrupts
that can cause the CT and INT pins to go active. It also reflects
the status of a temperature conversion operation. The interrupt
flags in this register are reset by a read operation to the status
register and/or when the temperature value returns within the
temperature limits including hysteresis. The RDY bit is reset after a
read from the temperature value register. In one-shot and 1 SPS
modes, the RDY bit is reset after a write to the operation mode
bits.
LOW
HIGH
CRIT
− T
+ T
− T
HYST
HYST
HYST
setpoint registers.
setpoint registers.
setpoint registers.
Preliminary Technical Data
LOW
HIGH
CRIT
temperature limit. This bit
temperature limit. This bit
temperature limit. This bit