ADM1026JSTZ-R7 datasheet(34/55 Pages) ONSEMI

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ADM1026

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Registers

Table 12. ADDRESS POINTER REGISTER

Bit

Name

R/W

Description

7–0

Address Pointer

Address of ADM1026 registers. See the following tables for details.

Table 13. LIST OF REGISTERS

Hex

Address

Name

Power-on

Value

Description

Configuration 1

00h

Configures various operating parameters .

Configuration 2

00h

Configures Pins 3–6 and 9–12 as fan inputs or GPIO.

Fan 0–3 Divisor

55h

Sets oscillator frequency for Fan 0–3 speed measurement.

Fan 4–7 Divisor

55h

Sets oscillator frequency for Fan 4–7 speed measurement.

DAC Control

FFh

Contains value for fan speed DAC (analog fan speed control) or minimum value

for automatic fan speed control.

PWM Control

FFh

Contains value for PWM fan speed control or minimum value for automatic fan

speed control.

EEPROM Register

100h

For factory use only.

Configuration Register

300h

Configuration register for THERM, VREF and GPIO16.

GPIO Config 1

00h

Configures GPIO0 to GPIO3 as input or output and as active high or active low.

GPIO Config 2

00h

Configures GPIO4 to GPIO7 as input or output and as active high or active low.

GPIO Config 3

00h

Configures GPIO8 to GPIO11 as input or output and as active high or active low.

GPIO Config 4

00h

Configures GPIO12 to GPIO15 as input or output and as active high or active low.

EEPROM Register 2

00h

For factory use only.

Int Temp THERM Limit

37h (55C)

High limit for THERM interrupt output based on internal temperature

measurement.

TDM1 THERM Limit

50h (80C)

High limit for THERM interrupt output based on Remote Channel 1 (D1)

temperature measurement.

TDM2 THERM Limit

50h (80C)

High limit for THERM interrupt output based on Remote Channel 2 (D2)

temperature measurement.

Int Temp TMIN

28h (40C)

TMIN value for automatic fan speed control based on internal temperature

measurement.

TDM1 TMIN

40h (64C)

TMIN value for automatic fan speed control based on Remote Channel 1 (D1)

temperature measurement.

TDM2 TMIN

40h (64C)

TMIN value for automatic fan speed control based on Remote Channel 2 (D2)

temperature measurement.

EEPROM Register 3

00h

Configures EEPROM for read/write/erase, etc.

Test Register 1

00h

Manufacturer’s test register.

Test Register 2

00h

For manufacturer’s use only.

Manufacturer’s ID

41h

Contains manufacturer’s ID code.

Revision

4xh

Contains code for major and minor revisions.

Mask Register 1

00h

Interrupt mask register for temperature and supply voltage faults.

Mask Register 2

00h

Interrupt mask register for analog input faults.

Mask Register 3

00h

Interrupt mask register for fan faults.

Mask Register 4

00h

Interrupt mask register for local temp, VBAT, AIN8, THERM, AFC, CI and GPIO16.

Mask Register 5

00h

Interrupt mask register for GPIO0 to GPIO7.

Mask Register 6

00h

Interrupt mask register for GPIO8 to GPIO15.

Int Temp Offset

00h

Offset register for internal temperature measurement.

Int Temp Value

00h

Measured temperature from on-chip sensor.

Status Register 1

00h

Interrupt status register for external temp and supply voltage faults.

Status Register 2

00h

Interrupt status register for analog input faults.

Status Register 3

00h

Interrupt status register for fan faults.

ADM1026JSTZ-R7 数据表(PDF) 34 Page - ON Semiconductor

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ADM1026JSTZ-R7 数据表(PDF) 34 Page - ON Semiconductor

ADM1026JSTZ-R7 数据表(HTML) 34 Page - ON Semiconductor

Html Pages

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