TMF8701-1XM datasheet(32/66 Pages) OSRAM

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Datasheet, Public

Page 31

[v2-00] 2023-Feb-21

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TMF8701 − Register Description

Figure 49:

DISTANCE_PEAK_1 Register

The sys clock registers is a running timer information – this value

is counting up (and wraps around to 0 again) as long as the

internal clock is running. As it is derived from the internal RC

oscillator and distance information is depending on its

accuracy, it can be used to correct an algorithm result by

comparing this clock with a more accurate clock inside the host.

For correctly updating of these registers by TMF8701, an I²C

blockread starting from address 0x1D until 0x27 shall be done.

Figure 50:

SYS_CLOCK_0 Register

Figure 51:

SYS_CLOCK_1 Register

Figure 52:

SYS_CLOCK_2 Register

0x23: DISTANCE_PEAK_1

Field

Name

Reset

Type

Description

7:0

distance_peak[15:8]

Distance to the peak in [mm] of the

object, most significant byte

0x24: SYS_CLOCK_0

Field

Name

Reset

Type

Description

7:0

sys_clock[7:0]

System clock/time stamp in units of 0.2μs

0x25: SYS_CLOCK_1

Field

Name

Reset

Type

Description

7:0

sys_clock[15:8]

System clock/time stamp in units of 0.2μs

0x26: SYS_CLOCK_2

Field

Name

Reset

Type

Description

7:0

sys_clock[23:16]

System clock/time stamp in units of 0.2μs

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