IMU-3000 INVENSENSE, IMU-3000 Datasheet - Page 38

• Manufacturer Part Number: IMU-3000
• Description: GYRO, TRI-AXIS, PROG +/-2000 DEG/S
• Manufacturer: INVENSENSE

Specifications of IMU-3000

• No. Of Axes: 3
• Sensor Case Style: QFN
• No. Of Pins: 24
• Supply Voltage Range: 2.1V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Interface: I2C, Serial
• Interface Type: I2C, Serial
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.12 Registers 53 to 57 – DMP Registers
10.13 Registers 58 to 59 – FIFO Count
Type: Read/Write
Description:
The data for these registers is included in a source code file supplied by InvenSense, and is used for
the Digital Motion Processor (DMP) operation. This data is only necessary if the DMP is enabled
using the User Control register (register 61).
Parameters:
RESERVED1
RESERVED2
RESERVED3
RESERVED4
RESERVED5
Type: Read only
Description:
These registers indicate how many bytes of valid data are contained in the FIFO. The FIFO can
contain up to 512 bytes of data
If the FIFO gets filled up completely, the length will read 512. In this state, the IMU-3000 continues
to put new sensor data into the FIFO, thus overwriting old FIFO data. Note, however, that the
alignment of sensor data can change in this overflow condition. InvenSense recommends resetting
the FIFO if an overflow condition occurs (use register 61), which will clear out the FIFO.
Parameters:
FIFO_COUNT_H/L Number of bytes currently in FIFO
Register
Register
(Hex)
(Hex)
3A
3B
35
36
37
38
38
(Decimal)
(Decimal)
Register
Register
53
54
55
56
57
58
59
Reserved data1 for the DMP
Reserved data2 for the DMP
Reserved data3 for the DMP
Reserved data4 for the DMP
Reserved data5 for the DMP
IMU-3000 Product Specification
Bit7
Bit7
-
Bit6
Bit6
-
38 of 56
Bit5
Bit5
-
Bit4
Bit4
FIFO_COUNT_L
-
RESERVED1
RESERVED2
RESERVED3
RESERVED4
RESERVED5
Bit3
Bit3
-
Document Number: PS-IMU-3000A-00-01.1
Revision: 1.1
Release Date: 08/19/2010
Bit2
Bit2
-
Bit1
Bit1
FIFO_COUNT_H
Bit0
Bit0
Default
Value
00h
00h