
ADT7411
Table 35.
Bit
D0
D1
D2
D3
D4
D5
D6
D7
Interrupt Mask 2 Register (Read/Write) [Address = 1Eh]
This mask register is an 8-bit read/write register that can be
used to mask out any interrupts that can cause the INT/INT pin
to go active.
Table 36. Interrupt Mask 2
D7
D6
D5
D4
D7
D6
D5
D4
0*
0*
0*
0*
*Default settings at power-up.
Table 37.
Bit
Function
D0
0 = Enable AIN5 interrupt.
1 = Disable AIN5 interrupt.
D1
0 = Enable AIN6 interrupt.
1 = Disable AIN6 interrupt.
D2
0 = Enable AIN7 interrupt.
1 = Disable AIN7 interrupt.
D3
0 = Enable AIN8 interrupt.
1 = Disable AIN8 interrupt.
D4
0 = Enable V
DD
interrupts.
1 = Disable V
DD
interrupts.
D5:D7
Reserved. Only write 0s.
Rev. A | Page 24 of 36
Function
0 = Enable internal T
HIGH
interrupt.
1 = Disable internal T
HIGH
interrupt.
0 = Enable internal T
LOW
interrupt.
1 = Disable internal T
LOW
interrupt.
0 = Enable external T
HIGH
interrupt or AIN1 interrupt.
1 = Disable external T
HIGH
interrupt or AIN1 interrupt.
0 = Enable external T
LOW
interrupt.
1 = Disable external T
LOW
interrupt.
0 = Enable external temperature fault interrupt.
1 = Disable external temperature fault interrupt.
0 = Enable AIN2 interrupt.
1 = Disable AIN2 interrupt.
0 = Enable AIN3 interrupt.
1 = Disable AIN3 interrupt.
0 = Enable AIN4 interrupt.
1 = Disable AIN4 interrupt.
D3
D3
0*
D2
D2
0*
D1
D1
0*
D0
D0
0*
Internal Temperature Offset Register (Read/Write)
[Address = 1Fh]
This register contains the offset value for the internal
temperature channel. A twos complement number can be
written to this register, which is then added to the measured
result before it is stored or compared to limits. In this way, a sort
of one-point calibration can be done whereby the whole
transfer function of the channel can be moved up or down.
From a software point of view this may be a very simple method
to vary the characteristics of the measurement channel if the
thermal characteristics change. Because it is an 8-bit register, the
temperature resolution is 1°C.
Table 38. Internal Temperature Offset
D7
D6
D5
D4
D7
D6
D5
D4
0*
0*
0*
0*
*Default settings at power-up.
External Temperature Offset Register (Read/Write)
[Address = 20h]
This register contains the offset value for the external tempera-
ture channel. A twos complement number can be written to this
register, which is then added to the measured result before it is
stored or compared to limits. In this way, a sort of one-point
calibration can be done whereby the whole transfer function of
the channel can be moved up or down. From a software point of
view, this may be a very simple method to vary the character-
istics of the measurement channel if the thermal characteristics
change. Because it is an 8-bit register, the temperature resolution
is 1°C.
Table 39. External Temperature Offset
D7
D6
D5
D4
D7
D6
D5
D4
0*
0*
0*
0*
*Default settings at power-up
V
DD
V
HIGH
Limit Register (Read/Write) [Address = 23h]
This limit register is an 8-bit read/write register that stores the
V
DD
upper limit that will cause an interrupt and activate the
INT/INT output (if enabled). For this to happen, the measured
V
DD
value has to be greater than the value in this register. The
default value is 5.46 V.
Table 40. V
DD
V
HIGH
Limit
D7
D6
D5
D4
D7
D6
D5
D4
1*
1*
0*
0*
*Default settings at power-up.
V
DD
V
LOW
Limit Register (Read/Write) [Address = 24h]
This limit register is an 8-bit read/write register that stores the
V
DD
lower limit that will cause an interrupt and activate the
INT/INT output (if enabled). For this to happen, the measured
V
DD
value has to be less than or equal to the value in this regis-
ter. The default value is 2.7 V.
Table 41. V
DD
V
LOW
Limit
D7
D6
D5
D4
D7
D6
D5
D4
0*
1*
1*
0*
*Default settings at power-up.
D3
D3
0*
D2
D2
0*
D1
D1
0*
D0
D0
0*
D3
D3
0*
D2
D2
0*
D1
D1
0*
D0
D0
0*
D3
D3
0*
D2
D2
1*
D1
D1
1*
D0
D0
1*
D3
D3
0*
D2
D2
0*
D1
D1
1*
D0
D0
0*