LSM6DB0 datasheet(31/66 Pages) STMICROELECTRONICS

Part #	LSM6DB0

Description	3D accelerometer, 3D gyroscope and signal processor

PDF	66 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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31 / 66 page

DocID025603 Rev 1

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LSM6DB0

Microprocessor functionality

8.3

Reset management

The device has an integrated brownout reset (BOR) circuit and an integrated power-on

reset (POR).

In the LSM6DB0, the BOR threshold is 1.5 V. When VDD is below this threshold, the device

is in reset. The BOR is always active in the LSM6DB0 at power-on.

The POR circuit is activated when the LDO has stabilized. The startup time of the LSM6DB0

at power-on is typically 1 ms with the BOR active.

8.4

Boot mode

At startup, the LSM6DB0 boots from a reserved section of the Flash memory programmed

by ST during production. It is used to adjust accurately the oscillator frequencies and

contains manufacturing information. Any interference with this initialization sequence can

degrade the performance of the device. At the end of this sequence, the system boots from

the main Flash which contains the user’s program.

8.5

Clock management

Figure 15. Clock tree

1. Same clock supply for both I2C

LSM6DB0 Datasheet(PDF) 31 Page - STMicroelectronics