ADT7310TRZ-REEL Просмотр технического описания (PDF) - Analog Devices

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ADT7310TRZ-REEL

±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor

Analog Devices 

ADT7310

REGISTERS

The ADT7310 contains eight registers:

• A status register

• A configuration register

• Five temperature registers

• An ID register

The status register, temperature value register, and the ID

register are read-only.

Table 6. ADT7310 Registers

Register

Address Description

0x00

Status

0x01

Configuration

0x02

Temperature value

0x03

ID

0x04

TCRIT setpoint

0x05

THYST setpoint

0x06

THIGH setpoint

0x07

TLOW setpoint

Power-On

Default

0x80

0x00

0x0000

0xCX

0x4980 (147°C)

0x05 (5°C)

0x2000 (64°C)

0x0500 (10°C)

Data Sheet

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 tempera-

ture 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 one-shot bits.

Table 7. Status Register (Register Address 0x00)

Default

Bit

Value

Type Name Description

[3:0] 0000

R

Unused Reads back 0.

4

0

R

TLOW

This bit is set to 1 when the temperature goes below the TLOW temperature limit. The bit clears to 0

when the status register is read and/or when the temperature measured goes back above the limit

set in the TLOW + THYST setpoint registers.

5

0

R

THIGH

This bit is set to 1 when the temperature goes above the THIGH temperature limit. The bit clears to 0

when the status register is read and/or when the temperature measured goes back below the limit

set in the THIGH − THYST setpoint registers.

6

0

R

TCRIT

This bit is set to 1 when the temperature goes above the TCRIT temperature limit. This bit clears to 0

when the status register is read and/or when the temperature measured goes back below the limit

set in the TCRIT − THYST setpoint registers.

7

1

R

RDY

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 one-shot bits.

Rev. A | Page 14 of 24

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