ADT7420UCPZ-R2 datasheet(16/24 Pages) AD

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ADT7420

Preliminary Technical Data

Rev. PrA | Page 16 of

THYST SETPOINT REGISTER

This 8-bit read/write register stores the temperature hysteresis

value for the THIGH, TLOW, and TCRIT temperature limits. The

temperature hysteresis value is stored in straight binary format

using four LSBs. Increments are possible in steps of 1°C from

0°C to 15°C. The value in this register is subtracted from the

THIGH and TCRIT values and added to the TLOW value to imple-

ment hysteresis.

ID REGISTER

This 8-bit read-only register stores the manufacturer ID in Bit 3

to Bit 7 and the silicon revision in Bit 0 to Bit 2.

Table 18. THYST Setpoint Register (Register Address 0x0A)

Bit

Default Value

Type

Name

Description

[3:0]

0101

R/W

HYST

Hysteresis value, from 0°C to 15°C. Stored in straight binary format. The default setting is 5°C.

[7:4]

0000

R/W

N/A

Not used.

Table 19. ID Register (Register Address 0x0B)

Bit

Default Value

Type

Name

Description

[2:0]

XXX

Revision ID

Contains the silicon revision identification number

[7:3]

11001

Manufacture ID

Contains the manufacture identification number

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