2 Ranging functional description
This section briefly describes the functional capabilities of VL53L4CX ranging device.
2.1 Ranging sequence
The device is running with a handshake mechanism, based on a standard interrupt management scheme.
After each ranging, the host acquires the ranging data and enables the next ranging by clearing the interrupt. An
interrupt is raised when a valid range is available. This process is referred to as the handshake mechanism.
Next ranging is then triggered when the current one is finished, and the host has cleared the previous pending
interrupt.
The interrupt mechanism allows faster data transfer, without losing any ranging value due to communication or
asynchronism issues. During the handshake phase, the host performs some data processing.
The ranging sequence is functionally described in the figure below.
UM2923
Ranging functional description
UM2923 - Rev 2
page 3/25
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