ADM1026JSTZ-R7 datasheet(39/55 Pages) ONSEMI

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ADM1026

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Table 21. REGISTER 07H, CONFIGURATION REGISTER 3 (POWER-ON DEFAULT 00H)

Bit

Name

R/W

Description

Enable GPIO16/

THERM = 0

R/W

When this bit is 1, Pin 42 is enabled as a general−purpose I/O pin (GPIO16);

otherwise it is the THERM output.

CI Clear = 0

R/W

Writing a 1 to this bit clears the CI latch. This bit is cleared by writing a 0 to it.

VREF Select = 0

R/W

When this bit is 0, VREF (Pin 24) outputs 1.82 V, otherwise, it outputs 2.5 V.

5–3

Unused

Undefined, reads back 0.

GPIO16 Direction

R/W

When this bit is 0, GPIO16 is configured as an input; otherwise, it is an output.

GPIO16 Polarity

R/W

When this bit is 0, GPIO16 is active low; otherwise, it is active high.

Table 22. REGISTER 08H, GPIO CONFIGURATION REGISTER 1 (POWER-ON DEFAULT 00H)

Bit

Name

R/W

Description

GPIO0 Direction

R/W

When this bit is 0, GPIO0 is configured as an input; otherwise, it is an output.

GPIO0 Polarity

R/W

When this bit is 0, GPIO0 is active low; otherwise it is active high.

GPIO1 Direction

R/W

When this bit is 0, GPIO1 is configured as an input; otherwise, it is an output.

GPIO1 Polarity

R/W

When this bit is 0, GPIO1 is active low; otherwise it is active high.

GPIO2 Direction

R/W

When this bit is 0, GPIO2 is configured as an input; otherwise, it is an output.

GPIO2 Polarity

R/W

When this bit is 0, GPIO2 is active low; otherwise, it is active high.

GPIO3 Direction

R/W

When this bit is 0, GPIO3 is configured as an input; otherwise, it is an output.

GPIO3 Polarity

R/W

When this bit is 0, GPIO3 is active low; otherwise, it is active high.

Table 23. REGISTER 09H, GPIO CONFIGURATION REGISTER 2 (POWER-ON DEFAULT 00H)

Bit

Name

R/W

Description

GPIO4 Direction

R/W

When this bit is 0, GPIO4 is configured as an input; otherwise, it is an output.

GPIO4 Polarity

R/W

When this bit is 0, GPIO4 is active low; otherwise, it is active high.

GPIO5 Direction

R/W

When this bit is 0, GPIO5 is configured as an input; otherwise, it is an output.

GPIO5 Polarity

R/W

When this bit is 0, GPIO5 is active low; otherwise, it is active high.

GPIO6 Direction

R/W

When this bit is 0, GPIO6 is configured as an input; otherwise, it is an output.

GPIO6 Polarity

R/W

When this bit is 0, GPIO6 is active low; otherwise, it is active high.

GPIO7 Direction

R/W

When this bit is 0, GPIO7 is configured as an input; otherwise, it is an output.

GPIO7 Polarity

R/W

When this bit is 0, GPIO7 is active low; otherwise, it is active high.

Table 24. REGISTER 0AH, GPIO CONFIGURATION REGISTER 3 (POWER-ON DEFAULT 00H)

Bit

Name

R/W

Description

GPIO8 Direction

R/W

When this bit is 0, GPIO8 is configured as an input; otherwise, it is an output.

GPIO8 Polarity

R/W

When this bit is 0, GPIO8 is active low; otherwise, it is active high.

GPIO9 Direction

R/W

When this bit is 0, GPIO9 is configured as an input; otherwise, it is an output.

GPIO9 Polarity

R/W

When this bit is 0, GPIO9 is active low; otherwise, it is active high.

GPIO10 Direction

R/W

When this bit is 0, GPIO10 is configured as an input; otherwise, it is an output.

GPIO10 Polarity

R/W

When this bit is 0, GPIO10 is active low; otherwise, it is active high.

GPIO11 Direction

R/W

When this bit is 0, GPIO11 is configured as an input; otherwise, it is an output.

GPIO11 Polarity

R/W

When this bit is 0, GPIO11 is active low; otherwise, it is active high.

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