ST VL53L3CX - Page 4

Figure 2. VL53L3CX ranging sequence overview
HANDSHAKE
HANDSHAKE
HANDSHAKE
HANDSHAKE
Init
Range1
Power Up &
XSHUT
released
Boot
Ranging Start
Range2
Range3
Get Range1 Data
Setup range 3
Clear interrupt range 1
Interrupt raised
Interrupt raised
AND
Interrupt
cleared
Get Range2 Data
Interrupt raised
Setup range 4
Clear interrupt range 2
AND
Interrupt raised
AND
Range4
Range5
Interrupt raised
AND
Interrupt raised
AND
Range6
Interrupt
cleared
Interrupt
cleared
Interrupt
cleared
Interrupt
cleared
Data
processing
Data
processing
Get Range3 Data
Setup range 5
Clear interrupt range3
Data
processing
Get Range4 Data
Setup range 6
Clear interrupt range4
Data
processing
Bare Driver
internal action
Key
VL53L3CX
internal action
Host action
HANDSHAKE
Get and Ignore
ranging data
Clear interrupt init
Setup range 2
HANDSHAKE
Interrupt
cleared
Get Range5 Data
Setup range 7
Clear interrupt range5
Data
processing
Handshake sequence allows the computation of internal parameters and apply them for next range.
UM2778
Ranging sequence
UM2778 - Rev 1
page 4/25