ITG3200 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

ITG3200

The ITG-3200 triple-axis MEMS gyroscope

Unspecified 

ITG-3200 Product Specification

Document Number: PS-ITG-3200A-00-01.4

Revision: 1.4

Release Date: 03/30/2010

8.6 Registers 27 to 34 – Sensor Registers

Type: Read only

Register Register

(Hex) (Decimal)

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

1B

27

TEMP_OUT_H

1C

28

TEMP_OUT_L

1D

29

GYRO_XOUT_H

1E

30

GYRO_XOUT_L

1F

31

GYRO_YOUT_H

20

32

GYRO_YOUT_L

21

33

GYRO_ZOUT_H

22

34

GYRO_ZOUT_L

Description:

These registers contain the gyro and temperature sensor data for the ITG-3200 parts. At any time, these values

can be read from the device; however it is best to use the interrupt function to determine when new data is

available.

Parameters:

TEMP_OUT_H/L

GYRO_XOUT_H/L

GYRO_YOUT_H/L

GYRO_ZOUT_H/L

16-bit temperature data (2’s complement format)

16-bit X gyro output data (2’s complement format)

16-bit Y gyro output data (2’s complement format)

16-bit Y gyro output data (2’s complement format)

8.7 Register 62 – Power Management

Type: Read/Write

Register

Register

(Hex)

(Decimal)

3E

62

Bit7

H_RESET

Bit6

SLEEP

Bit5

STBY

_XG

Bit4

STBY

_YG

Bit3

STBY

_ZG

Bit2

Bit1

Bit0

Default

Value

CLK_SEL

00h

Description:

This register is used to manage the power control, select the clock source, and to issue a master reset to the

device.

Setting the SLEEP bit in the register puts the device into very low power sleep mode. In this mode, only the

serial interface and internal registers remain active, allowing for a very low standby current. Clearing this bit

puts the device back into normal mode. To save power, the individual standby selections for each of the gyros

should be used if any gyro axis is not used by the application.

The CLK_SEL setting determines the device clock source as follows:

CLK_SEL

CLK_SEL

0

1

2

3

4

5

6

7

Clock Source

Internal oscillator

PLL with X Gyro reference

PLL with Y Gyro reference

PLL with Z Gyro reference

PLL with external 32.768kHz reference

PLL with external 19.2MHz reference

Reserved

Reserved

On power up, the ITG-3200 defaults to the internal oscillator. It is highly recommended that the device is

configured to use one of the gyros (or an external clock) as the clock reference, due to the improved stability.

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