ADT7516 datasheet(29/44 Pages) AD

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ADT7516/ADT7517/ADT7519

Rev. A | Page 29 of 44

RD/WR

Address

Name

Power-On

Default

15h

00h

DAC C MSBs

16h

DAC D LSBs

(ADT7516/ADT7517 only)

00h

17h

00h

DAC D MSBs

18h

Control CONFIGURATION 1

00h

19h

Control CONFIGURATION 2

00h

1Ah

Control CONFIGURATION 3

00h

1Bh

DAC CONFIGURATION

00h

1Ch

LDAC CONFIGURATION

00h

1Dh

Interrupt Mask 1

00h

1Eh

Interrupt Mask 2

00h

1Fh

Internal Temp Offset

00h

20h

External Temp Offset

00h

21h

Internal Analog Temp Offset

D8h

22h

External Analog Temp Offset

D8h

23h

VDD VHIGH Limit

C7h

24h

VDD VLOW Limit

62h

25h

Internal THIGH Limit

64h

26h

Internal TLOW Limit

C9h

27h

External THIGH/AIN1 VHIGH

Limits

FFh

28h

l TLOW/AIN1 VLOW Limits

00h

Externa

29h–2Ah

Reserved

2Bh

AIN2 VHIGH Limit

FFh

2Bh

AIN2 VHIGH Limit

FFh

2Ch

AIN2 VLOW Limit

00h

2Dh

AIN3 VHIGH Limit

FFh

2Eh

AIN3 VLOW Limit

00h

2Fh

AIN4 VHIGH Limit

FFh

30h

AIN4 VLOW Limit

00h

31h–4Ch

Reserved

4Dh

Device ID

03h/0Bh/07h

4Eh

Manufacturer’s ID

41h

4Fh

Silicon Revision

04h

50h–7Eh

Reserved

00h

7Fh

SPI Lock Status

00h

80h–FFh

Reserved

00h

Interrupt Status 1 Register (Read-Only) [Add. = 00h]

This 8-bit read-only register reflects the status of some of th

interrupts that can cause the INT/INT pin to go active. This

limit event has been corrected. It is also reset by a software res

Table 11. Interrupt Status 1 Register

et.

*Default

gs at

er-up

settin

pow

Table 12.

Bit

Function

1 when the internal temperature value exceeds THIGH limit.

Any internal temperature reading greater than the set limit

will cause an out-of-limit event.

1 when internal temperature value exceeds TLOW limit. Any

internal temperature reading less than or equal to the set

limit will cause an out-of-limit event.

This status bit is linked to the configuration of Pins 7 and 8.

If configured for external temperature sensor, this bit is 1

when external temperature value exceeds THIGH limit. The

default value for this limit register is –1°C, so any external

temperature reading greater than the set limit will cause

an out-of-limit event. If configured for AIN1 and AIN2, this

bit is 1 when AIN1 input voltage exceeds VHIGH or VLOW

limits.

1 when external temperature value exceeds TLOW limit. The

default value for this limit register is 0°C, so any external

temperature reading less than or equal to the set limit will

cause an out-of-limit event.

1 Indicates a fault (open or short) for the external

temperature sensor.

1 when AIN2 voltage is greater than its corresponding VHIGH

limit. 1 when AIN2 voltage is less than or equal to its

corresponding VLOW limit.

1 when AIN3 voltage is greater than its corresponding VHIGH

limit. 1 when AIN3 voltage is less than or equal to its

corresponding VLOW limit.

1 when AIN4 voltage is greater than its corresponding VHIGH

limit. 1 when AIN4 voltage is less than or equal to its

corresponding VLOW limit.

Interrupt Status 2 Register (Read-Only) [Add. = 01h]

This 8-bit read-only register reflects the status of the VDD inter-

rupt 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

has been corrected. It is also reset by a software reset.

Table 13. Interrupt Status 2 Register

N/A

*Default settings at power-up.

Table 14.

Bit

Function

1 when VDD value is greater than its corresponding VHIGH

limit. 1 when VDD is less than or equal to its corresponding

VLOW limit.

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