STUSB1600 datasheet(29/69 Pages) STMICROELECTRONICS

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STUSB1600

I2C register map

When a bit value change occurs on one of the mentioned transition registers, it

automatically sets the corresponding alert bit in the ALERT_STATUS register.

5.1.2

ALERT_STATUS_MASK_CTRL

Address: 0Ch

Access: R/W

Note: this register is used to mask an event interrupt and prevent the assertion of the alert

bit in the ALERT_STATUS register when the corresponding bit defined below is set to 1.

The condition for generating an active-low ALERT signal is:

[ALERT_STATUS bitwise AND (NOT ALERT_STATUS_MASK)] <> 0

5.1.3

CC_CONNECTION_STATUS_TRANS

Address: 0Dh

Access: RC

Note: This register indicates a bit value change has occurred in the

CC_CONNECTION_STATUS register.

Table 19. ALERT_STATUS_MASK_CTRL register

Bit

Field Name

Reset

Description

Reserved

Do not use

CC_CONNECTION_STATUS_AL_MASK

(NVM)

0b: interrupt unmasked

1b: interrupt masked

MONITORING_STATUS_AL_MASK

(NVM)

0b: interrupt unmasked

1b: interrupt masked

HW_FAULT_STATUS_AL_MASK

(NVM)

0b: interrupt unmasked

1b: interrupt masked

3:0

Reserved

1111b Do not use

Table 20. CC_CONNECTION_STATUS_TRANS register

Bit

Field name

Reset

Description

7:1

Reserved

000000b Do not use

CC_ATTACH_TRANS

0b: cleared

1b: transition occurred on CC_ATTACH bit

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