AN3393 datasheet(27/103 Pages) STMICROELECTRONICS

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AN3393

103

4.15

CTRL_REG2 (22h)

State Machine 2 interrupt configuration register.

Table 25. Control register 1 bit description

Bit name

Description

HYST1[2:0]

Hysteresis which is added or subtracted from the threshold values (THRS1_1

and THRS2_1) of State Machine 1.

000 = 0 (default)

111 = 7 (maximum hysteresis)

Hysteresis value is unsigned.

The hysteresis value is added or subtracted according to the condition to

evaluate (see Section 6.1).

SM1_PIN

0 = State Machine 1 interrupt routed to INT1.

1 = State Machine 1 interrupt routed to INT2.

SM1_EN

0 = State Machine 1 disabled. Temporary memories and registers related to this

state machine are left intact.

1 = State Machine 1 enabled.

Table 26. Control register 2 description

Bit

Name HYST2_2 HYST2_1 HYST2_0

SM2_PIN

SM2_EN

Default

Table 27. Control register 2 bit description

Bit name

Description

HYST2[2:0]

Hysteresis which is added or subtracted from the threshold values (THRS1_2

and THRS2_2) of State Machine 2.

000 = 0 (default)

111 = 7 (maximum Hysteresis)

Hysteresis value is unsigned.

The hysteresis value is added or subtracted according to the condition to

evaluate (see Section 6.1).

SM2_PIN

0 = State Machine 2 interrupt routed to INT1.

1 = State Machine 2 interrupt routed to INT2.

SM2_EN

0 = State Machine 2 disabled. Temporary memories and registers related to

this State Machine are left intact.

1 = State Machine 2 enabled.

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