TMF8801 datasheet(31/73 Pages) OSRAM

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TMF8801

Datasheet

• PUBLIC

DS000648

• v10-00 • 2022-Dec-20

│ 30

Addr: 0x10

COMMAND

Field

Name

Rst

Type

Description

Value

Definition

Any result (detect and no-detect) will trigger an interrupt

1-255

An interrupt will only be triggered if the detected

distance is >= low_threshold and

distance <= high_threshold and

the detection happened at least <persistence> consecutive

times

cmd_data3 = low_threshold 8-bit LSB value

cmd_data2 = low_threshold 8-bit MSB value

cmd_data1 = high_threshold 8-bit LSB value

cmd_data0 = high_threshold 8-bit MSB value

0x09

Read additional configuration for application

– only available for

firmware version 3.0.22 or higher.

After the command is executed, the persistence, low_threshold and

high_threshold are stored in registers 0x20 to 0x24

– see section

8.9.22 - Interrupt Suppression Registers

– Result of Command = 0x09

0x0A

Perform factory calibration in the final customer application including

cover glass, no ambient light and no target.

The result from the factory calibration is stored from register 0x20

onwards (14 bytes).

0x0B

Set flag to download calibration (and algorithm state) configuration to

TMF8801

cmd_data0 = Bit mask which calibration/state data was downloaded

from the host to TMF8801 prior to setting this command:

Bits

Definition

dataFactoryCal: when 1 data from register 0x20 onward includes

factory calibration

dataAlgState: if set, also set dataFactoryCal=1. Data from

state.

0x0F

Set gpio control setting without actually performing a measurement as

commands 0x02 or 0x03 would do:

cmd_data0 = Bits for GPIO control

Bits

Definition

3:0

GPIO0 settings

0 - Input

1 - Input: active low disables collection, immediately abandoning

current measurement. Returning to high restarts new

measurement

2 - Input: active high disables collection, immediately

abandoning current measurement. Returning to low restarts new

measurement

3 - Output: VCSEL pulse output

4 - Output low

5 - Output high

6:15 - Reserved, do not use

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