Datasheet

ADT7411
Rev. B | Page 21 of 36
Table 9.
Bit Function
D0
1 when internal temperature value exceeds T
HIGH
limit.
Any internal temperature reading greater than the set
limit causes an out-of-limit event.
D1
1 when internal temperature value exceeds T
LOW
limit.
Any internal temperature reading less than or equal to
the set limit causes an out-of-limit event.
D2
This status bit is linked to the configuration of Pin 7 and
P
in 8. If configured for external temperature sensor, this bit
is 1 when external temperature value exceeds T
HIGH
limit.
The default value for this limit register is –1°C, so any external
temperature reading greater than the limit set causes an
out-of-limit event. If configured for AIN1 and AIN2, this bit is
1 when the AIN1 input voltage exceeds V
HIGH
or V
LOW
limits.
D3
1 when external temperature value exceeds T
LOW
limit.
The default value for this limit register is 0°C, so any
external temperature reading less than or equal to the
limit set causes an out-of-limit event.
D4 1 indicates a fault (open or short) for the external temp sensor.
D5
1 when AIN2 voltage is greater than corresponding V
HIGH
limit. 1 when AIN2 voltage is less than or equal to
corresponding V
LOW
limit.
D6
1 when AIN3 voltage is greater than corresponding V
HIGH
limit. 1 when AIN3 voltage is less than or equal to
corresponding V
LOW
limit.
D7
1 when AIN4 voltage is greater than corresponding V
HIGH
limit. 1 when AIN4 voltage is less than or equal to
corresponding V
LOW
limit.
Interrupt Status 2 Register (Read-Only) [Address = 01h]
This 8-bit read-only register reflects the status of the V
DD
and
AIN5 to AIN8 interrupts that can cause the INT/
INT
pin to go
active. This register is reset by a read operation provided that any
out-of-limit event is corrected. It is also reset by a software reset.
Table 10. Interrupt Status 2 Register
D7 D6 D5 D4 D3 D2 D1 D0
N/A N/A N/A 0
1
0
1
0
1
0
1
0
1
1
Default settings at power-up.
Table 11.
Bit Function
D0
1 when AIN5 voltage is greater than the corresponding
V
HIGH
limit. 1 when AIN5 voltage is less than or equal to
the corresponding V
LOW
limit.
D1
1 when AIN6 voltage is greater than the corresponding
V
HIGH
limit. 1 when AIN6 voltage is less than or equal to
the corresponding V
LOW
limit.
D2
1 when AIN7 voltage is greater than the corresponding
V
HIGH
limit. 1 when AIN7 voltage is less than or equal to
the corresponding V
LOW
limit.
D3
1 when AIN8 voltage is greater than the corresponding
V
HIGH
limit. 1 when AIN8 voltage is less than or equal to
the corresponding V
LOW
limit.
D4
1 when V
DD
value is greater than the corresponding
V
HIGH
limit. 1 when V
DD
is less than or equal to the
corresponding V
LOW
limit.
D5:D7 Reserved
Internal Temperature Value/V
DD
Value Register LSBs
(Read-Only) [Address = 03h]
This internal temperature value and V
DD
value register is an
8-bit read-only register. It stores the two LSBs of the 10-bit
temperature reading from the internal temperature sensor and
also the two LSBs of the 10-bit supply voltage reading.
Table 12. Internal Temperature/V
DD
LSBs
D7 D6 D5 D4 D3 D2 D1 D0
N/A N/A N/A N/A V1 LSB T1 LSB
N/A N/A N/A N/A 0
1
0
1
0
1
0
1
1
Default settings at power-up.
Table 13.
Bit Function
D0 LSB of Internal Temperature Value
D1 B1 of Internal Temperature Value
D2 LSB of V
DD
Value
D3 B1 of V
DD
Value
External Temperature Value and AIN1 to AIN4 Register
LSBs (Read-Only) [Address = 04h]
This is an 8-bit read-only register. Bit D2 to Bit D7 store the two
LSBs of the analog inputs AIN2 to AIN4. Bit D0 and Bit D1 are
used to store the two LSBs of either the external temperature
value or AIN1 input value. The type of input for D0 and D1 is
selected by Bit 1 and Bit 2 of the Control Configuration 1 register.
Table 14. External Temperature and AIN1to AIN4 LSBs
D7 D6 D5 D4 D3 D2 D1 D0
A4 A4
LSB
A3 A3
LSB
A2 A2
LSB
T/A T/A
LSB
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
Default settings at power-up.
Table 15.
Bit Function
D0 LSB of External Temperature Value or AIN1 Value
D1 Bit 1 of External Temperature Value or AIN1 Value
D2 LSB of AIN2 Value
D3 Bit 1 of AIN2 Value
D4 LSB of AIN3 Value
D5 Bit 1 of AIN3 Value
D6 LSB of AIN4 Value
D7 Bit 1 of AIN4 Value