AD4080BBCZ datasheet(52/95 Pages) AD

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Data Sheet

AD4080

DIGITAL INTERFACE

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Rev. 0 | 52 of 95

Table 25. GPIO_x_SEL Function Descriptions (Continued)

GPIO_x_SEL

Function

Description

0100b

HI_DTCT

High Threshold Event Output. With threshold detection enabled, this configures the selected GPIO to indicate when the high level

threshold is crossed. The output is active high.

0101b

LO_DTCT

Low Threshold Output. With threshold detection enabled, this configures the selected GPIO to indicate when the low level threshold is

crossed. The output is active high.

0110b

ALERT

Status Alert (Active Low) Output. This configures the selected GPIO to function as the status alert for threshold event detection.

0111b

GPIO data

General-Purpose Output Mode. In this mode, the state of the corresponding GPIO_x_DATA bit in the GPIO Configuration A register

(see the GPIO Configuration A Register section, Address 0x19) is applied to the configured output.

1000b

FILTER_SYNC

Filter Synchronization Input (Active Low). This configures the selected GPIO to function as a synchronization signal for the digital filter.

When held low, this input holds the digital filter in reset.

1001b

EXT_EVENT

External Event Trigger Input. Event triggers when a logic high is detected on the configured GPIO input. This event can be used to

trigger the FIFO.

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