Specification

Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Product Description
KMX62 is a 6 Degrees-of-Freedom inertial sensor system that features
16-bit digital outputs accessed through I2C communication. The KMX62
sensor consists of a tri-axial magnetometer plus a tri-axial accelerometer
coupled with an ASIC. It is packaged in a 3 x 3 x 0.9mm Land Grid Array
(LGA) package. The ASIC is realized in standard 0.18um CMOS
technology and features flexible user programmable ±2g/±4g/±8g/±16g
full scale range for the accelerometer. Accelerometer and Magnetometer
data can be accumulated in an internal 384 byte FIFO buffer and
transmitted to the application processor.
Acceleration sensing is based on the principle of a differential capacitance
arising from acceleration-induced motion of the sense element, which
utilizes common mode cancellation to decrease errors from process
variation, temperature, and environmental stress. Capacitance changes
are amplified and converted into digital signals which are processed by a dedicated digital signal
processing unit. The digital signal processor applies filtering, bias and sensitivity adjustment, as well
as temperature compensation.
Magnetic sensing is based on the principle of magnetic impedance. The magnetic sensor detects very
small magnetic fields by passing an electric pulse through a special electron spin aligned amorphous
wire. Due to the high Curie temperature of the wire, the sensor’s thermal performance shows excellent
stability.
Noise performance is excellent with bias stability over temperature. Bias errors resulting from
assembly can be trimmed digitally by the user. These sensors can accept supply voltages between
1.7V and 3.6V, and digital communication voltages between 1.2 and 3.6V.
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Page 1 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Table of Contents
PRODUCT DESCRIPTION ....................................................................................................................................................................1
TABLE OF CONTENTS .........................................................................................................................................................................2
FUNCTIONAL DIAGRAM ....................................................................................................................................................................5
PRODUCT SPECIFICATIONS................................................................................................................................................................6
MAGNETOMETER SPECIFICATIONS ................................................................................................................................................................. 6
ACCELEROMETER SPECIFICATIONS .................................................................................................................................................................. 7
NOISE DIAGRAMS ....................................................................................................................................................................................... 8
TEMPERATURE SENSOR ................................................................................................................................................................................ 9
ELECTRICAL SPECIFICATIONS.......................................................................................................................................................................... 9
CURRENT CONSUMPTION DIAGRAMS ........................................................................................................................................................... 10
START UP TIME DIAGRAMS ........................................................................................................................................................................ 11
POWER-ON PROCEDURE ............................................................................................................................................................................ 12
I2C TIMING DIAGRAM ............................................................................................................................................................................... 13
ENVIRONMENTAL SPECIFICATIONS ............................................................................................................................................................... 14
Soldering .......................................................................................................................................................................................... 14
APPLICATION SCHEMATIC ........................................................................................................................................................................... 15
PIN DESCRIPTIONS .................................................................................................................................................................................... 15
PACKAGE DIMENSIONS AND ORIENTATION .................................................................................................................................................... 16
Dimensions ....................................................................................................................................................................................... 16
Orientation ....................................................................................................................................................................................... 17
DIGITAL INTERFACE ......................................................................................................................................................................... 18
I2C SERIAL INTERFACE................................................................................................................................................................................ 18
I2C OPERATION ........................................................................................................................................................................................ 19
WRITING TO A KMX62 8-BIT REGISTER ........................................................................................................................................................ 20
READING FROM A KMX62 8-BIT REGISTER.................................................................................................................................................... 20
DATA TRANSFER SEQUENCES ...................................................................................................................................................................... 21
HS-MODE ............................................................................................................................................................................................... 22
POWER MODES ............................................................................................................................................................................... 23
OFF MODE .............................................................................................................................................................................................. 23
INITIAL STARTUP ....................................................................................................................................................................................... 23
STAND-BY MODE ...................................................................................................................................................................................... 24
SLEEP MODE ............................................................................................................................................................................................ 24
LOW POWER (<RES> = 00 OR 01) MODE..................................................................................................................................................... 24
HIGH RESOLUTION (<RES> = 10 OR 11) MODE ............................................................................................................................................. 24
EMBEDDED REGISTERS.................................................................................................................................................................... 25
REGISTER DESCRIPTIONS................................................................................................................................................................. 26
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Page 2 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
WHO_AM_I .......................................................................................................................................................................................... 27
INS1 - INTERRUPT SOURCE REGISTER 1 ........................................................................................................................................................ 27
INS2 - INTERRUPT SOURCE REGISTER 2 ........................................................................................................................................................ 28
INS3 - INTERRUPT SOURCE REGISTER 3 ........................................................................................................................................................ 28
INL - INTERRUPT LATCH RELEASE................................................................................................................................................................. 29
ACCELEROMETER OUTPUT .......................................................................................................................................................................... 29
MAGNETOMETER OUTPUT .......................................................................................................................................................................... 30
TEMPERATURE OUTPUT ............................................................................................................................................................................. 31
INC1 - INTERRUPT CONTROL 1 ................................................................................................................................................................... 32
INC2 - INTERRUPT CONTROL 2 ................................................................................................................................................................... 33
INC3 – INTERRUPT CONTROL 3................................................................................................................................................................... 34
INC4 - INTERRUPT CONTROL 4 ................................................................................................................................................................... 35
INC5 - INTERRUPT CONTROL 5 ................................................................................................................................................................... 35
AMI_CNTL1 - ACCELEROMETER MOTION CONTROL 1 ................................................................................................................................... 36
AMI_CNTL2 - ACCELEROMETER MOTION CONTROL 2 ................................................................................................................................... 36
AMI_CNTL3 - ACCELEROMETER MOTION CONTROL 3 ................................................................................................................................... 37
MMI_CNTL1 - MAGNETOMETER MOTION CONTROL 1.................................................................................................................................. 38
MMI_CNTL2 - MAGNETOMETER MOTION CONTROL 2.................................................................................................................................. 38
MMI_CNTL3 - MAGNETOMETER MOTION CONTROL 3.................................................................................................................................. 39
FFI_CNTL1 - FREE FALL CONTROL 1 ........................................................................................................................................................... 40
FFI_CNTL2 - FREE FALL CONTROL 2 ........................................................................................................................................................... 40
FFI_CNTL3 - FREE FALL CONTROL 3 ........................................................................................................................................................... 41
ODCNTL - OUTPUT DATA CONTROL REGISTER .............................................................................................................................................. 42
CNTL1 - CONTROL REGISTER 1 ................................................................................................................................................................... 44
CNTL2 - CONTROL REGISTER 2 ................................................................................................................................................................... 45
COTR - COMMAND TEST RESPONSE ............................................................................................................................................................ 46
BUF_CTRL_1,2,3................................................................................................................................................................................... 47
BUF_CLEAR .......................................................................................................................................................................................... 48
BUF_STATUS_1,2,3 .............................................................................................................................................................................. 48
BUF_READ ............................................................................................................................................................................................ 49
SAMPLE BUFFER FEATURE DESCRIPTION ........................................................................................................................................ 50
FIFO MODE ............................................................................................................................................................................................ 50
STREAM MODE ........................................................................................................................................................................................ 50
TRIGGER MODE ....................................................................................................................................................................................... 51
FILO MODE ............................................................................................................................................................................................ 51
BUFFER OPERATION .................................................................................................................................................................................. 51
NOTICE............................................................................................................................................................................................ 58
PRECAUTION ON USING KIONIX PRODUCTS .................................................................................................................................................. 58
PRECAUTION FOR MOUNTING / CIRCUIT BOARD DESIGN................................................................................................................................... 59
PRECAUTIONS REGARDING APPLICATION EXAMPLES AND EXTERNAL CIRCUITS ...................................................................................................... 59
PRECAUTION FOR ELECTROSTATIC ................................................................................................................................................................ 59
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Page 3 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
PRECAUTION FOR STORAGE / TRANSPORTATION ............................................................................................................................................. 59
PRECAUTION FOR PRODUCT LABEL ............................................................................................................................................................... 60
PRECAUTION FOR DISPOSITION.................................................................................................................................................................... 60
PRECAUTION FOR FOREIGN EXCHANGE AND FOREIGN TRADE ACT....................................................................................................................... 60
PRECAUTION REGARDING INTELLECTUAL PROPERTY RIGHTS .............................................................................................................................. 60
OTHER PRECAUTION ................................................................................................................................................................................. 60
GENERAL PRECAUTION .............................................................................................................................................................................. 60
REVISION HISTORY .......................................................................................................................................................................... 61
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Page 4 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
Functional Diagram
X
Accel
Y
Accel
Amplifier
ADC
Z
Accel
DSP
X
Mag
Y
Mag
Amplifier
ADC
Z
Mag
FIFO buffer
Temp
Sensor
I 2C Interface
Power
VDD
GND IO_VDD Cap
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SDA
SCL ADDR
GPIO1 GPIO2
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Page 5 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
Product Specifications
Note: Specifications are for operation at VDD = 2.5V and T = 25ºC (RES=1) unless stated otherwise
Magnetometer Specifications
Parameters
Operating Temperature Range
Full Scale Range
Digital Bit Depth
Offset at Zero Magnetic Field
Offset Temperature Coefficient
Magnetic Sensitivity
Sensitivity Accuracy
Sensitivity Temperature Coefficient.
Positive Self Test Output change on
Activation
Negative Self Test Output change on
Activation
Integral Non-Linearity
Noise1 (at 50Hz ODR)
Cross Axis Sensitivity
Maximum Exposed Field2
Units
Min
Typical
Max
ºC
± T
bits
± T
± T/ºC
± T/LSB
±%
± %/ºC
-40
1200
16
0
0.3
0.0366
20
0.05
85
T
800
T
-800
% of FS
T (RMS)
0.5
0.3
2.0 (XY)
0.5 (XZ)
0.3 (YX)
0.2 (YZ)
0.9 (ZX)
0.2 (ZY)
% of FS
T
Table 1. Magnetometer Specifications
500,000
Notes:
1. See diagrams below for noise performance over ODR for all three axes.
2. No permanent effect on Zero Magnetic Field Offset.
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Page 6 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Accelerometer Specifications
Parameters
Units
Operating Temperature Range
ºC
GSEL1=0, GSEL0=0
GSEL1=0, GSEL0=1
Full Scale Range
g
GSEL1=1, GSEL0=0
GSEL1=1, GSEL0=1
Digital Bit Depth
Zero-g Offset
mg
Zero-g Offset Temperature Coefficient
± mg/ºC
GSEL1=0, GSEL0=0 (± 2g)
GSEL1=0, GSEL0=1 (± 4g)
Sensitivity
mg/LSB
GSEL1=1, GSEL0=0 (± 8g)
GSEL1=1, GSEL0=1 (± 16g)
Sensitivity Accuracy
±%
Sensitivity Temperature Coefficient
± %/ºC
Positive Self Test Output change on Activation
Sensor Mechanical Resonance (-3dB)1
g
Typical
Max
-40
±2
±4
±8
± 16
16
±25
85
% of FS
Cross Axis Sensitivity2
±%
±90
0.25
0.06
0.12
0.24
0.49
5
0.01
0.25 (XY)
0.20 (Z)
Hz
Integral Non-Linearity
Noise3 (at 50Hz)
Min
mg (RMS)
Table 2. Accelerometer Specifications
0.5
0.75 (XYZ)
3500 (xy)
1800 (z)
1
-2.0 (XY)
0.1 (XZ)
2.7 (YX)
-0.7 (YZ)
-0.8 (ZX)
1.4 (ZY)
0.75
Notes:
1. Resonance as defined by the dampened mechanical sensor.
2. As measured in a test socket. The cross axis sensitivity that is measured is the by-product
of positional inaccuracies at all stages of test and assembly.
3. See diagrams below for noise performance over ODR for all three axes.
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Page 7 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Noise Diagrams
Typical noise over selected ODR settings (0.781,1.563,3.125,6.25,12.5,25,50,100,200,400,800,1600Hz)
Res
Accel
Mag
00
01
10,
11
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Page 8 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
Temperature Sensor
(specifications are for operation at VDD = 2.5V and T = 25ºC unless stated otherwise)
Parameters
Units
Min
Typical
Max
Operating Temperature Range
Output Accuracy
Sensitivity (16-bit digital)
Sensitivity (8-bit digital, TEMP<15:8>)
ºC
± ºC
counts/ ºC
counts/ ºC
-40
5
0.0039
1
85
Electrical Specifications
Parameters
Units
Min
Typical
Max
Supply Voltage
Operating
V
1.7
2.5
3.6
(VDD)
I/O Pads Supply Voltage (IO_VDD)
V
1.2
3.6
Operating
(mag
+
accel)
395
Current
295
Consumption1 Magnetometer only
µA
150
(High Resolution Mode) Accelerometer only
(<RES> = 10 or 11)
Standby
1
5
Output Low Voltage2
V
0.2 * IO_VDD
Output Low Voltage (IO_VDD > 2V)
V
0.4
Output High Voltage
V
0.9 * IO_VDD
Input Low Voltage
V
0.3 * IO_VDD
Input High Voltage
V
0.7 * IO_VDD
2
3,4
I C Communication Rate
MHz
0.1
0.4
3.4
Output Data Rate
Hz
0.781
100
25.6kHz
RES 00,01
Hz
800
Filter -3dB Cutoff5
RES 10,11
Hz
ODR/2
Internal Oscillator Tolerance
%
-10
10
6
Start Up Time
ms
Table 3. Electrical Specifications
Notes:
1.
2.
3.
4.
5.
6.
See Current Consumption diagrams below for other modes (RES = 00 or 01).
Assuming I2C communication and minimum 1.5kΩ pull-up resistor on SCL and SDA.
Assuming max bus capacitance load of 20pF.
The I2C bus supports Standard-Mode, Fast-Mode and High Speed Mode.
User selectable via ODR control register setting
Start up time is from PC1 set to valid outputs. Time varies with Output Data Rate
(ODR) and mode setting (RES); see diagrams below
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Page 9 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Current Consumption Diagrams
Typical current over selected ODR (0.781,1.563,3.125,6.25,12.5,25,50,100,200,400,800,1600Hz) @ VDD =
2.5V and T = 25ºC
Res
Accel Only
Mag Only
Accel and Mag
00
01
10,
11
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Page 10 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
Start Up Time Diagrams
Typical Start Up Time over selected ODR (0.781,1.563,3.125,6.25,12.5,25,50,100,200,400,800,1600Hz)
Startup Time over ODR, Res 00
Startup Time over ODR, Res 01
1.6
2.5
1.4
2.0
1.2
1.5
ms
ms
1.0
0.8
1.0
0.6
0.4
0.5
0.2
0.0
0.1
0.0
1
10
100
1000
10000
0.1
1
10
ODR (Hz)
Startup Time over ODR, Res 10
10000
1400.0
1,297
1200.0
1,285
1200.0
1000.0
1000.0
800.0
650
ms
ms
1000
Startup Time over ODR, Res 11
1400.0
600.0
325
400.0
163
200.0
800.0
639
600.0
321
400.0
82 41
21 11 5.8 3.3 2.1 1.4
162
200.0
0.0
0.1
100
ODR (Hz)
81 41
21 11 5.7 3.3 2.0 1.4
0.0
1
10
100
ODR (Hz)
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1000
10000
0.1
1
10
100
1000
10000
ODR (Hz)
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Page 11 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Power-On Procedure
Proper functioning of power-on reset (POR) is dependent on the specific VDD, VDDLow, TVDD (rise
time), and TVdd_Off profile of individual applications. It is recommended to minimize VDDLow, and TVDD,
and maximize TVdd_Off. It is also advised that the VDD ramp up time TVdd be monotonic. To assure
proper POR in all environmental conditions the application should be evaluated over the range of VDD,
VDDLow, TVDD , TVdd_Off and temperature as POR performance can vary depending on these
parameters. In order to guarantee proper reset regardless of the VDDLow, TVDD (rise time), and TVdd_Off
parameters, a software reset can be issued via the I2C protocol. Please refer to Technical Note TN005
KMX62 Power-On Procedure to ensure proper POR function in your application.
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Page 12 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
I2C Timing Diagram
Table 4. I2C Timing (Fast Mode)
Number
Description
MIN
MAX
Units
t0
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
Note
SDA low to SCL low transition (Start event)
SDA low to first SCL rising edge
SCL pulse width: high
SCL pulse width: low
SCL high before SDA falling edge (Start Repeated)
SCL pulse width: high during a S/Sr/P event
SCL high before SDA rising edge (Stop)
SDA pulse width: high
SDA valid to SCL rising edge
SCL rising edge to SDA invalid
SCL falling edge to SDA valid (when slave is transmitting)
SCL falling edge to SDA invalid (when slave is transmitting)
50
100
100
100
50
100
50
25
50
50
0
2.5
100
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
us
Recommended I2C CLK
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Page 13 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Environmental Specifications
Parameters
Units
Min
Typical
Max
Supply Voltage (VDD) Absolute Limits
Operating Temperature Range
Storage Temperature Range
V
ºC
ºC
-0.3
-40
-55
-
Mech. Shock (powered and unpowered)
g
-
-
3.6
85
150
5000 for 0.5ms
10000 for 0.2ms
2000
ESD
HBM
V
Table 5. Environmental Specifications
Caution: ESD Sensitive and Mechanical Shock Sensitive Component, improper handling can
cause permanent damage to the device.
The products described above conform to RoHS Directive 2011/65/EU of the European Parliament
and of the Council of the European Union that was issued June 8, 2011. Specifically, these
products do not contain any non-exempted amounts of lead, mercury, cadmium, hexavalent
chromium, polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE) above the
maximum concentration values (MCV) by weight in any of its homogenous materials. Homogenous materials
are “of uniform composition throughout”. The MCV for lead, mercury, hexavalent chromium, PBB, and PBDE is
0.10%. The MCV for cadmium is 0.010%.
Applicable Exemption: 7C-I - Electrical and electronic components containing lead in a glass or ceramic other
than dielectric ceramic in capacitors (piezoelectronic devices) or in a glass or ceramic matrix compound.
These products are also in conformance with REACH Regulation No 1907/2006 of the European
Parliament and of the Council that was issued Dec. 30, 2011. They do not contain any Substances
of Very High Concern (SVHC-161) as identified by the European Chemicals Agency as of 17
December 2014.
HF
This product is halogen-free per IEC 61249-2-21. Specifically, the materials used in this product
contain a maximum total halogen content of 1500 ppm with less than 900-ppm bromine and less
than 900-ppm chlorine.
Soldering
Soldering recommendations are available upon request or from www.kionix.com.
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Page 14 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Application Schematic
Vdd
C1
16
IO_VDD
C2
15
14
1
13
2
12
GND
11
GPIO1
3
SCL
4
GND
5
KMX62
10
9
6
7
GPIO2
8
SDA
ADDR
Pin Descriptions
Pin
Name
Description
1
IO_VDD
The power supply input for the digital communication bus. Optionally decouple this pin to ground with
a 0.1uF ceramic capacitor.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CAP
GND
SCL
GND
SDA
ADDR
NC
GPIO2
NC
GPIO1
GND
NC
VDD
NC
NC
Do not connect. Must be left floating.
Ground
I2C Serial Clock
Ground
I2C Serial Data
I2C Address pin.This pin must be connected to IO_VDD or GND to determine the I2C Device Address.
Not Internally Connected
GPIO 2. Cannot float when configured as an input.
Not Internally Connected
GPIO 1. Cannot float when configured as an input.
Ground
Not Internally Connected
The power supply input. Decouple this pin to ground with a 0.1uF ceramic capacitor.
Not Internally Connected
Not Internally Connected
Table 6. KMX62 Pin Descriptions
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Page 15 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Package Dimensions and Orientation
Dimensions
3 x 3 x 0.9 mm LGA
KMX62
Figure 1. KMX62 Package Dimensions
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Page 16 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Orientation
When device is moved in +X, +Y, or +Z direction, the corresponding accelerometer output will
increase. When the +X, +Y, or +Z arrow is directed toward North, the output of that axis is
positive.
KMX62
+X
+Z
+Y
Figure 2. KMX62 Orientation
Please avoid mounting this product on the part in which magnetic field disturbance exists, such
as near any parts containing ferrous materials.
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Page 17 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Digital Interface
The Kionix KMX62 digital sensor has the ability to communicate on the I2C digital serial interface bus. This
flexibility allows for easy system integration by eliminating analog-to-digital converter requirements and by
providing direct communication with system processors. The I2C interface is compliant with high-speed mode,
fast mode and standard mode I2C protocols.
The serial interface terms and descriptions as indicated in Table 7 below will be observed throughout this
document.
Term
Transmitter
Receiver
Master
Slave
Description
The device that transmits data to the bus.
The device that receives data from the bus.
The device that initiates a transfer, generates clock signals, and terminates a transfer.
The device addressed by the Master.
Table 7. Serial Interface Terminologies
I2C Serial Interface
As previously mentioned, the KMX62 has the ability to communicate on an I2C bus. I2C is primarily used for
synchronous serial communication between a Master device and one or more Slave devices. The system
Master provides the serial clock signal and addresses Slave devices on the bus. The KMX62 always operates
as a Slave device during standard Master-Slave I2C operation.
I2C is a two-wire serial interface that contains a Serial Clock (SCL) line and a Serial Data (SDA) line. SCL is a
serial clock that is provided by the Master, but can be held low by any Slave device, putting the Master into a
wait condition. SDA is a bi-directional line used to transmit and receive data to and from the interface. Data is
transmitted MSB (Most Significant Bit) first in 8-bit per byte format, and the number of bytes transmitted per
transfer is unlimited. The I2C bus is considered free when both lines are high.
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
SDA SCL
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
IO Vdd
SDA
MCU
SCL
SDA
KMX62
SCL
ADDR
SDA
KMX62
SCL
ADDR
Figure 3. Multiple KMX62 I2C Connection
Description
I2C Wr
I2C Rd
I2C Wr
I2C Rd
Address
7 bit
Pad
Address Address <7> <6> <5> <4> <3> <2> <1> <0>
IO_VDD
0Fh
1Eh
0
0
0
1
1
1
1
0
IO_VDD
0Fh
1Fh
0
0
0
1
1
1
1
1
GND
0Eh
1Ch
0
0
0
1
1
1
0
0
GND
0Eh
1Dh
0
0
0
1
1
1
0
1
Table 8. I2C Address
I2C Operation
Transactions on the I2C bus begin after the Master transmits a start condition (S), which is defined as a highto-low transition on the data line while the SCL line is held high. The bus is considered busy after this
condition. The next byte of data transmitted after the start condition contains the Slave Address (SAD) in the
seven MSBs (Most Significant Bits), and the LSB (Least Significant Bit) tells whether the Master will be
receiving data ‘1’ from the Slave or transmitting data ‘0’ to the Slave. When a Slave Address is sent, each
device on the bus compares the seven MSBs with its internally-stored address. If they match, the device
considers itself addressed by the Master. The KMX62’s Slave Address is comprised of two programmable
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Page 19 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
parts, which allows for connection of multiple KMX62's to the same I2C bus. The LSB is determined by the
assignment of ADDR to GND or IO_Vdd. Figure 3 and Table 8 above show how two KMX62's would be
implemented on an I2C bus.
It is mandatory that receiving devices acknowledge (ACK) each transaction. Therefore, the transmitter must
release the SDA line during this ACK pulse. The receiver then pulls the data line low so that it remains stable
low during the high period of the ACK clock pulse. A receiver that has been addressed, whether it is Master or
Slave, is obliged to generate an ACK after each byte of data has been received. To conclude a transaction,
the Master must transmit a stop condition (P) by transitioning the SDA line from low to high while SCL is high.
The I2C bus is now free. Note that if the KMX62 is accessed through I2C protocol before the startup is finished
a NACK signal is sent.
Writing to a KMX62 8-bit Register
Upon power up, the Master must write to the KMX62’s control registers to set its operational mode. Therefore,
when writing to a control register on the I2C bus, as shown Sequence 1 on the following page, the following
protocol must be observed: After a start condition, SAD+W transmission, and the KMX62 ACK has been
returned, an 8-bit Register Address (RA) command is transmitted by the Master. This command is telling the
KMX62 to which 8-bit register the Master will be writing the data. Since this is I 2C mode, the MSB of the RA
command should always be zero (0). The KMX62 acknowledges the RA and the Master transmits the data to
be stored in the 8-bit register. The KMX62 acknowledges that it has received the data and the Master
transmits a stop condition (P) to end the data transfer. The data sent to the KMX62 is now stored in the
appropriate register. The KMX62 automatically increments the received RA commands and, therefore,
multiple bytes of data can be written to sequential registers after each Slave ACK as shown in Sequence 2 on
the following page.
Reading from a KMX62 8-bit Register
When reading data from a KMX62 8-bit register on the I2C bus, as shown in Sequence 3 on the next page, the
following protocol must be observed: The Master first transmits a start condition (S) and the appropriate Slave
Address (SAD) with the LSB set at ‘0’ to write. The KMX62 acknowledges and the Master transmits the 8-bit
RA of the register it wants to read. The KMX62 again acknowledges, and the Master transmits a repeated
start condition (Sr). After the repeated start condition, the Master addresses the KMX62 with a ‘1’ in the LSB
(SAD+R) to read from the previously selected register. The Slave then acknowledges and transmits the data
from the requested register. The Master does not acknowledge (NACK) it received the transmitted data, but
transmits a stop condition to end the data transfer. The KMX62 automatically increments through its
sequential registers, allowing data to be read from multiple registers following a single SAD+R command as
shown below in Sequence 4 on the following page. Reading data from a buffer read register is a special case
because if register address (RA) is set to buffer read register (BUF_READ) in Sequence 4, the register autoincrement feature is automatically disabled. Instead, the Read Pointer will increment to the next data in the
buffer, thus allowing reading multiple bytes of data from the buffer using a single SAD+R command.
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PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
Data Transfer Sequences
The following information clearly illustrates the variety of data transfers that can occur on the I2C bus and how
the Master and Slave interact during these transfers. Table 9 defines the I2C terms used during the data
transfers.
Term
S
Sr
SAD
W
R
ACK
NACK
RA
Data
P
Definition
Start Condition
Repeated Start Condition
Slave Address
Write Bit
Read Bit
Acknowledge
Not Acknowledge
Register Address
Transmitted/Received Data
Stop Condition
Table 9. I2C Terms
Sequence 1. The Master is writing one byte to the Slave.
Master
Slave
S
SAD + W
RA
ACK
DATA
ACK
P
ACK
Sequence 2. The Master is writing multiple bytes to the Slave.
Master
Slave
S
SAD + W
RA
ACK
DATA
ACK
DATA
ACK
P
ACK
Sequence 3. The Master is receiving one byte of data from the Slave.
Master
Slave
S
SAD + W
RA
ACK
Sr
SAD + R
ACK
NACK
ACK
P
DATA
Sequence 4. The Master is receiving multiple bytes of data from the Slave.
Master
Slave
S
SAD + W
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RA
ACK
Sr
ACK
SAD + R
ACK
ACK
DATA
NACK
DATA
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Page 21 of 61
P
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
HS-mode
To enter the 3.4MHz high speed mode of communication, the device must receive the following sequence of
conditions from the master: a Start condition followed by a Master code (00001XXX) and a Master Nonacknowledge. Once recognized, the device switches to HS-mode communication. Read/write data transfers
then proceed as described in the sequences above. Devices return to the FS-mode after a STOP occurrence
on the bus.
Sequence 5. HS-mode data transfer of the Master writing one byte to the Slave.
Speed
Master
Slave
S
FS-mode
M-code NACK
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S
SAD + W
ACK
HS-mode
RA
ACK
FS-mode
DATA
P
ACK
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Page 22 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Power Modes
The KMX62 has five power modes: Off, Stand-by, Sleep, Low Power (RES = 0) and High Resolution (RES =
1). The part exists in one of these five modes at any given time. Off and Stand-by modes have very low
current consumptions.
Power
Mode
Bus State
Off
-
Stand-by
Sleep
<RES> =
00 or 01
<RES> =
10 or 11
IO_VDD
VDD
Function
Outputs
Active
OFF
ON
OFF
ON
OFF
OFF
ON
ON
No sensor activity
Not available
Waiting activation command
Accelerometer active looking
for motion wake up
Not available
Accel registers only – no
buffer, no DRDY int
Active
ON
ON
Active
ON
ON
All functionalities available
All sensors available
Active
ON
ON
All functionalities available
All sensors available
Off mode
One or both of the power supplies (VDD or IO_VDD) are not powered. The sensor is completely inactive and
not reporting or communicating. Bus communication actions of other devices are not disturbed if they are
using the same bus interface as this component.
Initial Startup
The preferred startup sequence is to turn on IO_VDD before VDD, but if VDD is turned on first, the
component will not affect the bus communications (no latch-up or other problems during engine system level
wake-up).
Power On Reset (POR) is performed every time when:
1. IO_VDD supply is valid
2. VDD power supply is going to valid level
OR
1. IO_VDD power supply is going to valid level
2. VDD supply is valid
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
When POR occurs, the registers are loaded from OTP and the part is put into Stand-by mode.
Stand-by mode
The primary function of the stand-by mode is to ensure fast wake-up to active mode and to minimize current
consumption. This mode is set as default when both power supplies are applied and the POR function
occurs. A Soft Reset command also performs the POR function and puts the part into Stand-by mode.
Stand-by mode is a low power waiting state for fast turn on time. Bus communication actions of other
components are not disturbed if they are using the same bus. There is only one possible way to change to
active mode – a register command from the external application processor via the I2C bus.
Sleep mode
While in sleep mode, the accelerometer is periodically taking a measurement to detect if there is any motion.
Data in the accelerometer registers is being updated, however, there is no data ready interrupt being
reported. Also, no data is being sent to the buffer.
Low Power (<RES> = 00 or 01) mode
Stand-by-mode can be changed to a Low Power mode by writing to register Control Register 2 or when a
motion wake up event occurs.
Low power mode engages the full functionality of accelerometer and/or magnetometer measurements in a
low power, low resolution mode. The host has the ability to change settings in the control register back to
Stand-by mode for either or both the accelerometer and magnetometer. If enabled, the back to sleep
function will put the part into the Sleep mode.
The host can also place the part into High Resolution (<RES> = 10 or 11) mode by writing to Control
Register 2.
High Resolution (<RES> = 10 or 11) mode
Stand-by-mode can be changed to High Resolution mode by writing to register Control Register 2.
High Resolution mode engages the full functionality of accelerometer and/or magnetometer measurements
in a higher power, higher resolution mode. The host has the ability to change settings in the control register
back to Stand-by mode for either or both the accelerometer and magnetometer. If enabled, the back to
sleep function will put the part into the Sleep mode.
The host can also place the part into Low Power (<RES> = 00 or 01) mode by writing to Control Register 2.
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Page 24 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Embedded Registers
The KMX62 has 45 embedded 8-bit registers that are accessible by the user. This section contains the
addresses for all embedded registers and also describes bit functions of each register. Table 10 below
provides a listing of the accessible 8-bit registers and their addresses.
WHO_AM_I
I2C Address
(Hex)
00h
Type
R/W
R/W
AMI_CNTL1
I2C Address
(Hex)
2Fh
Type
R/W
R/W
INS1
01h
R
AMI_CNTL2
30h
R/W
INS2
02h
R
AMI_CNTL3
31h
R/W
INS3
03h
R
MMI_CNTL1
32h
R/W
INL
05h
R
MMI_CNTL2
33h
R/W
ACCEL_XOUT_L
0Ah
R
MMI_CNTL3
34h
R/W
ACCEL_XOUT_H
0Bh
R
FFI_CNTL1
35h
R/W
ACCEL_YOUT_L
0Ch
R
FFI_CNTL2
36h
R/W
ACCEL_YOUT_H
0Dh
R
FFI_CNTL3
37h
R/W
ACCEL_ZOUT_L
0Eh
R
ODCNTL
38h
R/W
ACCEL_ZOUT_H
0Fh
R
CNTL1
39h
R/W
MAG_XOUT_L
10h
R
CNTL2
3Ah
R/W
MAG_XOUT_H
11h
R
COTR
3Ch
R
MAG_YOUT_L
12h
R
BUF_CTRL_1
77h
R/W
MAG_YOUT_H
13h
R
BUF_CTRL_2
78h
R/W
MAG_ZOUT_L
14h
R
BUF_CTRL_3
79h
R/W
MAG_ZOUT_H
15h
R
BUF_CLEAR
7Ah
W
TEMP_OUT_L
16h
R
BUF_STATUS_1
7Bh
R
TEMP_OUT_H
17h
R
BUF_STATUS_2
7Ch
R
INC1
2Ah
R/W
BUF_STATUS_3
7Dh
R
INC2
2Bh
R/W
BUF_READ
7Eh
R
INC3
2Ch
R/W
INC4
2Dh
R/W
INC5
2Eh
R/W
Register Name
Register Name
Table 10. I2C Register Map
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Page 25 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Register Descriptions
Register
Addr R/W POR Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
Register is the general description of the contents of the register.
Addr is the address of the register used during communications
R/W describes if a register can be written to or read from.
POR gives the value of the register after power is applied or after software reset (SRST bit)
OTP = Factory default values reloaded into registers from OTP.
00h = Register contains all zeros
blank = Register is a write only register or sensor output
Wrt describes how the ASIC will behave if the register is written while enabled. This is important
because if modes of operation are change while the state machine is running the digital portion
of the ASIC can enter undefined states and cause unexpected results.
blank = This register cannot be written to.
OTF = On The Fly registers can be written while the ASIC is enabled and the change will be
accepted with no interruption in the operation although there will be a settling time for some
changes.
RST = Restart indicates that if this register is written to while any sensors are enabled the ASIC
will automatically disable for a brief time and then re-enable the sensors that were previously
enabled. Interrupt and buffer status registers will be cleared (01h, 02h, 03h, 7Bh, 7Ch, 7Dh)
NRST = No Restart indicates that if this register is written to while any sensors are enabled the
ASIC will NOT automatically disable/enable. Changes apply to the block being controlled for
quick sweeps but the operation of the digital engine may not be correct and the DUT must be
disabled/enabled for complete functionality.
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Page 26 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
WHO_AM_I
This register can be used for supplier recognition, as it can be factory written to a known byte value.
Register
WHO_AM_I
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
00h R/W 18h
R/W
OTF
WAI_MIR<7>
WAI_MIR<6>
WAI_MIR<5>
WAI_MIR<4>
WAI_MIR<3>
WAI_MIR<2>
WAI_MIR<1>
WAI_MIR<0>
INS1 - Interrupt Source Register 1
This register tells which function caused an interrupt.
Register
Addr
R/W
POR
INS1
01h
R
00h
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
INT
BFI
WMI
DRDY_A
DRDY_M
FFI
AMI
MMI
INT reports the combined (OR) interrupt information of all enabled interrupt.
0= no interrupt event, 1= interrupt event has occurred.
BFI - indicates that the buffer is full. This bit is cleared when the data is read until the buffer is
not full.
BFI = 0 – Buffer is not full
BFI = 1 – Buffer is full
WMI - indicates that user-defined buffer watermark has been reached. This bit is cleared
when the data is read until the sample level in the buffer is smaller than the watermark
threshold.
WMI = 0 – Buffer watermark not reached
WMI = 1 – Buffer watermark reached
DRDY_A - indicates that new acceleration data is available. This bit is cleared when the data
is read or the interrupt release register (INL Register) is read.
DRDY = 0 – New acceleration data not available
DRDY = 1 – New acceleration data available
DRDY_M - indicates that new magnetometer data is available. This bit is cleared when the
data is read or the interrupt release register (INL Register) is read.
DRDY = 0 – New acceleration data not available
DRDY = 1 – New acceleration data available
FFI – Free fall, this bit is cleared when the interrupt source latch register (INL Register) is
read.
FFS = 1 – Free fall has activated the interrupt
FFS = 0 – No free fall
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
AMI – Accelerometer motion interrupt, This bit is cleared when the interrupt source latch
register (INL Register) is read.
AMS = 1 – Motion has activated the interrupt
AMS = 0 – No motion
MMI – Magnetometer motion interrupt, This bit is cleared when the interrupt source latch
register (INL Register) is read.
MMS = 1 – Motion has activated the interrupt
MMS = 0 – No motion
INS2 - Interrupt Source Register 2
This register reports the sensor, axis and direction of the motion that triggered the interrupt.
Register
Addr
R/W
POR
INS2
02h
R
00h
Wrt
Bit 7
Bit 6
SPARE_0002<7> SPARE_0002<6>
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
AXNI
AXPI
AYNI
AYPI
AZNI
AZPI
AXNI - x negative (x-)
AXPI - x positive (x+)
AYNI - y negative (y-)
AYPI - y positive (y+)
AZNI - z negative (z-)
AZPI - z positive (z+)
INS3 - Interrupt Source Register 3
The Interrupt Source Register 3 reports the sensor, axis and direction of the motion that triggered the
interrupt.
Register
Addr
R/W
POR
INS3
03h
R
00h
Wrt
Bit 7
Bit 6
SPARE_0003<7> SPARE_0003<6>
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
MXNI
MXPI
MYNI
MYPI
MZNI
MZPI
MXNI - x negative (x-)
MXPI - x positive (x+)
MYNI - y negative (y-)
MYPI - y positive (y+)
MZNI - z negative (z-)
MZPI - z positive (z+)
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Page 28 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
INL - Interrupt Latch Release
Latched interrupt source information (at INS1 and INS2) is cleared and physical interrupt latched pin is
changed to its inactive state when this register is read. If an engine is configured as an unlatched
interrupt and the current state is indicating and interrupt this release will not clear the interrupt.
Register
Addr
R/W
POR
INL
05h
R
00h
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Accelerometer output
Register
Addr
R/W
ACCEL_XOUT_L
ACCEL_XOUT_H
ACCEL_YOUT_L
ACCEL_YOUT_H
ACCEL_ZOUT_L
ACCEL_ZOUT_H
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
R
R
R
R
R
R
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
ACC_X<7>
ACC_X<15>
ACC_Y<7>
ACC_Y<15>
ACC_Z<7>
ACC_Z<15>
ACC_X<6>
ACC_X<14>
ACC_Y<6>
ACC_Y<14>
ACC_Z<6>
ACC_Z<14>
ACC_X<5>
ACC_X<13>
ACC_Y<5>
ACC_Y<13>
ACC_Z<5>
ACC_Z<13>
ACC_X<4>
ACC_X<12>
ACC_Y<4>
ACC_Y<12>
ACC_Z<4>
ACC_Z<12>
ACC_X<3>
ACC_X<11>
ACC_Y<3>
ACC_Y<11>
ACC_Z<3>
ACC_Z<11>
ACC_X<2>
ACC_X<10>
ACC_Y<2>
ACC_Y<10>
ACC_Z<2>
ACC_Z<10>
ACC_X<1>
ACC_X<9>
ACC_Y<1>
ACC_Y<9>
ACC_Z<1>
ACC_Z<9>
ACC_X<0>
ACC_X<8>
ACC_Y<0>
ACC_Y<8>
ACC_Z<0>
ACC_Z<8>
These registers contain up to 16-bits of valid acceleration data for each axis. The data is updated every
user-defined ODR period, is protected from overwrite during each read, and can be converted from
digital counts to acceleration (g) per Figure 4 below. The register acceleration output binary data is
represented in N-bit 2’s complement format. For example, if N = 16 bits, then the Counts range is from
-32768 to 32767.
16-bit
Register Data
(2’s complement)
0111 1111 1111 1111
0111 1111 1111 1110
…
0000 0000 0000 0001
0000 0000 0000 0000
1111 1111 1111 1111
…
1000 0000 0000 0001
1000 0000 0000 0000
Equivalent
Counts in decimal
32767
32766
…
1
0
-1
…
-32767
-32768
Range = +/-2g
+1.99994g
+1.99988g
…
+0.00006g
0.00000g
-0.00006g
…
-1.99994g
-2.00000g
Range = +/-4g
+3.99988g
+3.99976g
…
+0.00012g
0.00000g
-0.00012g
…
-3.99988g
-4.00000g
Range = +/-8g
+7.99976g
+7.99951g
…
+0.00024g
0.000g
-0.00024g
…
-7.99976g
-8.00000g
Range = +/-16g
+15.99951g
+15.99902g
…
+0.00049g
0.00000g
-0.00049g
…
-15.99951g
-16.00000g
Figure 4. Acceleration (g) Calculation
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Page 29 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
Magnetometer output
Register
Addr
R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
MAG_XOUT_L
10h
R
POR
Wrt
MAG_X<7>
MAG_X<6>
MAG_X<5>
MAG_X<4>
MAG_X<3>
MAG_X<2>
MAG_X<1>
MAG_X<0>
MAG_XOUT_H
11h
R
MAG_X<15>
MAG_X<14>
MAG_X<13>
MAG_X<12>
MAG_X<11>
MAG_X<10>
MAG_X<9>
MAG_X<8>
MAG_YOUT_L
12h
R
MAG_Y<7>
MAG_Y<6>
MAG_Y<5>
MAG_Y<4>
MAG_Y<3>
MAG_Y<2>
MAG_Y<1>
MAG_Y<0>
MAG_YOUT_H
13h
R
MAG_Y<15>
MAG_Y<14>
MAG_Y<13>
MAG_Y<12>
MAG_Y<11>
MAG_Y<10>
MAG_Y<9>
MAG_Y<8>
MAG_ZOUT_L
14h
R
MAG_Z<7>
MAG_Z<6>
MAG_Z<5>
MAG_Z<4>
MAG_Z<3>
MAG_Z<2>
MAG_Z<1>
MAG_Z<0>
MAG_ZOUT_H
15h
R
MAG_Z<15>
MAG_Z<14>
MAG_Z<13>
MAG_Z<12>
MAG_Z<11>
MAG_Z<10>
MAG_Z<9>
MAG_Z<8>
These registers contain 16-bits of valid magnetic field data for each axis. The data is protected from
overwrite during each read, and can be converted from digital counts to magnetic field strength (T)
per Figure 5 below.
16-bit Data
0111 1111 1111 1111
0111 1111 1111 1110
…
…
0000 0000 0000 0001
0000 0000 0000 0000
1111 1111 1111 1111
…
…
1000 0000 0000 0001
1000 0000 0000 0000
Magnetic field T
+1199.9634 T
+1199.9268 T
…
…
+0.0366 T
0 T
-0.0366 T
…
…
-1199.9634 T
-1200.0000 T
Figure 5. Magnetic field (T) Calculation
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
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© 2015 Kionix – All Rights Reserved
Page 30 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
Temperature Output
Register
Addr
R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
TEMP_OUT_L
16h
R
POR
Wrt
TEMP<7>
TEMP<6>
TEMP<5>
TEMP<4>
TEMP<3>
TEMP<2>
TEMP<1>
TEMP<0>
TEMP_OUT_H
17h
R
TEMP<15>
TEMP<14>
TEMP<13>
TEMP<12>
TEMP<11>
TEMP<10>
TEMP<9>
TEMP<8>
The temperature registers contain up to 16-bits of temperature data. If only register TEMP_OUT_H is
used, then the sensitivity can be considered as 1 count/°C. If both registers TEMP_OUT_H and
TEMP_OUT_L are used (16 bits), then sensitivity can be considered as 64 count/°C.
8-bit
Register Data
TEMP_OUT_H
(2’s complement)
0101 0101
…
0000 0001
0000 0000
1111 1111
…
1101 1000
16-bit
Register Data
(2’s complement)
0101 0101 0000 0000
…
0000 0001 0000 0000
…
0000 0000 0100 0000
…
0000 0000 0000 0001
0000 0000 0000 0000
1111 1111 1111 1111
…
1111 1111 1100 0000
…
1111 1111 0000 0000
…
1101 1000 0000 0000
Equivalent
Counts in decimal
85
…
1
0
-1
…
-40
Equivalent
Counts in decimal
21760
…
256
…
64
…
1
0
-1
…
-64
…
-256
…
-10240
Temperature (°C)
+85 °C
…
+1 °C
0 °C
-1 °C
…
-40 °C
Temperature
(°C)
+85.000 °C
…
+1.0000 °C
…
+0.2500 °C
…
+0.0039 °C
0.0000 °C
-0.0039 °C
…
-0.2500 °C
…
-1.0000 °C
…
-40.000 °C
Figure 6. Temperature (°C) Calculation
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tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 31 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
INC1 - Interrupt Control 1
This register controls routing of an interrupt reporting to physical interrupt pin GPIO1.
Register
INC1
Addr
R/W
POR
2Ah R/W 00h
Wrt
Bit 7
RST SPARE_002A<7>
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
BFI1
WMI1
DRDY_A1
DRDY_M1
FFI1
AMI1
MMI1
BFI1 - Buffer full interrupt reported on GPIO1
BFI = 0 – disable
BFI = 1 – enable.
WMI1 - Watermark interrupt reported on GPIO1
WMI1 = 0 – disable
WMI1 = 1 – enable
DRDY_A1 - Accelerometer Data ready reported on GPIO1
DRDY_A1 = 0 – disable
DRDY_A1 = 1 – enable.
DRDY_M1 - Magnetometer Data ready reported on GPIO1
DRDY_M1 = 0 – disable
DRDY_M1 = 1 – enable.
FFI1 - Accelerometer Freefall interrupt reported on GPIO1
FFI1 = 0 – disable
FFI1 = 1 – enable.
AMI1 - Accelerometer motion interrupt reported on GPIO1
AMI1 = 0 – disable
AMI1 = 1 – enable.
MMI1 - Magnetometer motion interrupt reported on GPIO1
MMI1 = 0 – disable
MMI1 = 1 – enable.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 32 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
INC2 - Interrupt Control 2
This register controls routing of an interrupt reporting to physical interrupt pin GPIO2.
Register
INC2
Addr
R/W
POR
2Bh R/W 00h
Wrt
Bit 7
RST SPARE_002B<7>
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
BFI2
WMI2
DRDY_A2
DRDY_M2
FFI2
AMI2
MMI2
BFI2- Buffer full interrupt reported on GPIO2
BFI2 = 0 – disable
BFI2 = 1 – enable.
WMI2 - Watermark interrupt reported on GPIO2
WMI2 = 0 – disable
WMI2 = 1 – enable
DRDY_A2 - Accelerometer Data ready reported on GPIO2
DRDY_A2 = 0 – disable
DRDY_A2 = 1 – enable.
DRDY_M2 - Magnetometer Data ready reported on GPIO2
DRDY_M2 = 0 – disable
DRDY_M2 = 1 – enable.
FFI2 - Accelerometer Freefall interrupt reported on GPIO2
FFI2 = 0 – disable
FFI2 = 1 – enable.
AMI2 - Accelerometer motion interrupt reported on GPIO2
AMI2 = 0 – disable
AMI2 = 1 – enable.
MMI2 - Magnetometer motion interrupt reported on GPIO2
MMI2 = 0 – disable
MMI2 = 1 – enable.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 33 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
INC3 – Interrupt Control 3
This register controls the GPIO pin configuration.
Register
INC3
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
2Ch R/W 88h
R/W
RST
IED2
IEA2
IEL2<1>
IEL2<0>
IED1
IEA1
IEL1<1>
IEL1<0>
IED1 – Interrupt pin drive options for GPIO1
IED1 = 0 – push-pull
IED1 = 1 – open-drain
IEA1 - Interrupt active level control for interrupt GPIO1
IEA1 = 0 – active low
IEA1 = 1 – active high
IEL1 <1,0>- Interrupt latch control for interrupt GPIO1
IEL1 = 0,0 – latched/unlatched. Unlatched feature is available for FFI,MME and AMI.
IEL1 = 0,1 – pulsed. In pulse mode the pulse width is 50us for normal mode and 10us
for debug mode (high ODR rates).
IEL1 = 1,X – trigger input for FIFO.
IED2 – Interrupt pin drive options for GPIO2
IED2 = 0 – push-pull
IED2 = 1 – open-drain
IEA2 - Interrupt active level control for interrupt GPIO2
IEA2 = 0 – active low
IEA2 = 1 – active high
IEL2 <1,0>- Interrupt latch control for interrupt GPIO2
IEL2 = 0,0 – latched/unlatched. Unlatched feature is available for FFI,MME and AMI.
IEL2 = 0,1 – pulsed. In pulse mode the pulse width is 50us for normal mode and 10us
for debug mode (high ODR rates).
IEL2 = 1,X – trigger input for FIFO.
IED#
0
0
0
0
1
1
1
1
IEA#
0
0
1
1
0
0
1
1
IEL#<1,0>
0,0
0,1
0,0
0,1
0,0
0,1
0,0
0,1
BFI#
0
0
0
0
0
0
0
0
WMI#
0
0
0
0
0
0
0
0
X
X
1,X
X
X
DRDY_A# DRDY_M#
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
X
FFI#
0
0
0
0
0
0
0
0
MMI#
0
0
0
0
0
0
0
0
AMI#
0
0
0
0
0
0
0
0
X
X
X
X
GPIO state
The GPIO pin is held high
The GPIO pin is held high
The GPIO pin is held low
The GPIO pin is held low
The GPIO pin is high impedance
The GPIO pin is high impedance
The GPIO pin is held low
The GPIO pin is held low
The GPIO pin is configured as an
input for FIFO trigger. If both GPIO
pins are trigger, the signals are
OR’ed.
Special Cases
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 34 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
INC4 - Interrupt Control 4
This register controls which accelerometer axis and direction of detected motion can cause an
interrupt.
Register
INC4
Addr
R/W
POR
2Dh R/W 3Fh
Wrt
N
Bit 7
Bit 6
SPARE_002D<7> SPARE_002D<6>
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
AXNIE
AXPIE
AYNIE
AYPIE
AZNIE
AZPIE
AXNIE - x negative (x-) accelerometer mask for AMI, 0=disable, 1=enable.
AXPIE - x positive (x+) accelerometer mask for AMI, 0=disable, 1=enable.
AYNIE - y negative (y-) accelerometer mask for AMI, 0=disable, 1=enable.
AYPIE - y positive (y+) accelerometer mask for AMI, 0=disable, 1=enable.
AZNIE - z negative (z-) accelerometer mask for AMI, 0=disable, 1=enable.
AZPIE - z positive (z+) accelerometer mask for AMI, 0=disable, 1=enable.
INC5 - Interrupt Control 5
This register controls which magnetometer axis and direction of detected motion can cause an
interrupt.
Register
INC5
Addr
R/W
POR
2Eh R/W 3Fh
Wrt
N
Bit 7
Bit 6
SPARE_002E<7> SPARE_002E<6>
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
MXNIE
MXPIE
MYNIE
MYPIE
MZNIE
MZPIE
MXNIE - x negative (x-) magnetometer mask for MMI, 0=disable, 1=enable.
MXPIE - x positive (x+) magnetometer mask for MMI, 0=disable, 1=enable.
MYNIE - y negative (y-) magnetometer mask for MMI, 0=disable, 1=enable.
MYPIE - y positive (y+) magnetometer mask for MMI, 0=disable, 1=enable.
MZNIE - z negative (z-) magnetometer mask for MMI, 0=disable, 1=enable.
MZPIE - z positive (z+) magnetometer mask for MMI, 0=disable, 1=enable.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 35 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
AMI_CNTL1 - Accelerometer Motion Control 1
This register has control settings for the accelerometer motion interrupt function.
Register
AMI_CNTL1
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
2Fh R/W 00h
R/W
RST
AMITH<7>
AMITH<6>
AMITH<5>
AMITH<4>
AMITH<3>
AMITH<2>
AMITH<1>
AMITH<0>
AMITH<7:0> - Accelerometer motion interrupt threshold. This value is compared to the top 8
bits of the accelerometer 4g output.
AMI_CNTL2 - Accelerometer Motion Control 2
This register has control settings for the accelerometer motion interrupt function.
Register
AMI_CNTL2
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
30h R/W 00h
R/W
RST
AMICT<7>
AMICT<6>
AMICT<5>
AMICT<4>
AMICT<3>
AMICT<2>
AMICT<1>
AMICT<0>
AMICT<7:0> - Accelerometer motion interrupt counter. Every count is calculated as 1/ODR
delay period, where the Motion Interrupt ODR is user-defined per the OAMI bits in
AM_CNTL3. A new state must be valid as many measurement periods before the
change is accepted. Note that to properly change the value of this register, the
accelerometer should be in stand.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 36 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
AMI_CNTL3 - Accelerometer Motion Control 3
This register has control settings for the accelerometer motion interrupt function.
Register
AMI_CNTL3
Addr
POR
Wrt
Bit 7
Bit 6
31h R/W 00h
R/W
RST
AMI_EN
AMIUL
Bit 5
Bit 4
Bit3
SPARE_0031<5> SPARE_0031<4> SPARE_0031<3>
Bit 2
Bit 1
Bit 0
OAMI<2>
OAMI<1>
OAMI<0>
AMI_EN - Accelerometer motion interrupt engine enable
AMI_EN = 0 – disabled
AMI_EN = 1 – enabled
AMIUL - Accelerometer Motion Interrupt latch/un-latch control for interrupt GPIO1/2
AMIUL = 0 – latched
AMIUL = 1 – un-latched
OAMI<2:0> - Output Data Rate at which the accelerometer motion detection performs its
function.
OAMI<2> OAMI <1> OAMI <0>
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
Output Data Rate (Hz)
0.781
1.563
3.125
6.25
12.5
25
50
100
© 2015 Kionix – All Rights Reserved
Page 37 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
MMI_CNTL1 - Magnetometer Motion Control 1
This register has control settings for the magnetometer motion interrupt function.
Register
MMI_CNTL1
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
32h R/W 00h
R/W
RST
MMITH<7>
MMITH<6>
MMITH<5>
MMITH<4>
MMITH<3>
MMITH<2>
MMITH<1>
MMITH<0>
MMITH<7:0> - Magnetometer motion interrupt threshold. This value is compared to the top 8
bits of the magnetometer 1200uT output.
MMI_CNTL2 - Magnetometer Motion Control 2
This register has control settings for the magnetometer motion interrupt function.
Register
MMI_CNTL2
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
33h R/W 00h
R/W
RST
MMICT<7>
MMICT<6>
MMICT<5>
MMICT<4>
MMICT<3>
MMICT<2>
MMICT<1>
MMICT<0>
MMICT<7:0> - Magnetometer motion interrupt counter. Every count is calculated as 1/ODR
delay period.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 38 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
MMI_CNTL3 - Magnetometer Motion Control 3
This register has control settings for the magnetometer motion interrupt function.
Register
MMI_CNTL3
Addr
POR
Wrt
Bit 7
Bit 6
34h R/W 00h
R/W
RST
MMI_EN
MMIUL
Bit 5
Bit 4
Bit3
SPARE_0034<5> SPARE_0034<4> SPARE_0034<3>
Bit 2
Bit 1
Bit 0
OMMI<2>
OMMI<1>
OMMI<0>
MMI_EN - Magnetometer motion interrupt engine enable
MMI_EN = 0 – disabled
MMI_EN = 1 – enabled
MMIUL - Magnetometer Motion Interrupt latch/un-latch control for interrupt GPIO1/2
MMIUL = 0 – latched
MMIUL = 1 – un-latched
OMMI<2:0> - Output Data Rate at which the magnetometer motion detection performs its
function.
OMMI<2> OMMI <1> OMMI <0> Output Data Rate (Hz)
0
0
0
0.781
0
0
1
1.563
0
1
0
3.125
0
1
1
6.25
1
0
0
12.5
1
0
1
25
1
1
0
50
1
1
1
100
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 39 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
FFI_CNTL1 - Free Fall Control 1
This register has control settings for the free fall interrupt function.
Register
FFI_CNTL1
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
35h R/W 00h
R/W
RST
FFITH<7>
FFITH<6>
FFITH<5>
FFITH<4>
FFITH<3>
FFITH<2>
FFITH<1>
FFITH<0>
FFITH<7:0> - Accelerometer free fall interrupt threshold. This value is compared to the
top 8 bits of the accelerometer 4g output.
FFI_CNTL2 - Free Fall Control 2
This register has control settings for the free fall interrupt function.
Register
FFI_CNTL2
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
36h R/W 00h
R/W
RST
FFICT<7>
FFICT<6>
FFICT<5>
FFICT<4>
FFICT<3>
FFICT<2>
FFICT<1>
FFICT<0>
FFICT<7:0> - Accelerometer free fall interrupt counter. Every count is calculated as
1/ODR delay period.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 40 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
FFI_CNTL3 - Free Fall Control 3
This register has control settings for the free fall interrupt function.
Register
FFI_CNTL3
Addr
POR
Wrt
Bit 7
Bit 6
37h R/W 00h
R/W
RST
FFI_EN
FFIUL
Bit 5
Bit 4
SPARE_0037<5> SPARE_0037<4>
Bit3
Bit 2
Bit 1
Bit 0
DCRM
OFFI<2>
OFFI<1>
OFFI<0>
FFI_EN - Accelerometer freefall engine enable
FFI_EN = 0 – disabled
FFI_EN = 1 – enabled
FFIUL - Accelerometer Freefall Interrupt latch/un-latch control for interrupt GPIO1/2
FFIUL = 0 – latched
FFIUL = 1 – un-latched
DCRM – Debounce methodology control.
DCRM = 0 - count up/down
DCRM = 1- count up/reset.
OFFI<2:0> - Output Data Rate at which the free fall detection performs its function.
OFFI<2>
0
0
0
0
1
1
1
1
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
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OFFI <1>
0
0
1
1
0
0
1
1
OFFI <0>
0
1
0
1
0
1
0
1
Output Data Rate (Hz)
12.5
25
50
100
200
400
800
1600
© 2015 Kionix – All Rights Reserved
Page 41 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
ODCNTL - Output Data Control Register
Output data control register
Register
ODCNTL
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
38h R/W 22h
R/W
RST
OSM<3>
OSM<2>
OSM<1>
OSM<0>
OSA<3>
OSA<2>
OSA<1>
OSA<0>
OSA<3:0> - Rate at which data samples from the accelerometer will be updated in the
register map.
OSA<3> OSA<2> OSA<1> OSA<0>
Output Data Rate (Hz)
0
0
0
0
12.5**
0
0
0
1
25**
0
0
1
0
50**
0
0
1
1
100**
0
1
0
0
200**
0
1
0
1
400*
0
1
1
0
800
0
1
1
1
1600
1
0
0
0
0.781**
1
0
0
1
1.563**
1
0
1
0
3.125**
1
0
1
1
6.25**
1
1
0
0
25.6kHz, ST 0.8kHz
1
1
0
1
25.6kHz, ST 1.6kHz
1
1
1
0
25.6kHz, ST 3.2kHz
1
1
1
1
25.6kHz
Accelerometer Sampling Rate
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 42 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
OSM<3:0> - Rate at which data samples from the magnetometer (and temperature sensor if
enabled) will be updated in the register map.
OSM<3> OSM<2> OSM<1> OSM<0>
Output Data Rate (Hz)
0
0
0
0
12.5**
0
0
0
1
25**
0
0
1
0
50**
0
0
1
1
100**
0
1
0
0
200**
0
1
0
1
400*
0
1
1
0
800
0
1
1
1
1600
1
0
0
0
0.781**
1
0
0
1
1.563**
1
0
1
0
3.125**
1
0
1
1
6.25**
1
1
0
0
12.8kHz (polarity bit bypassed)
1
1
0
1
12.8kHz (polarity bit bypassed)
1
1
1
0
12.8kHz (polarity bit bypassed)
1
1
1
1
12.8kHz (polarity bit bypassed)
Magnetometer Sampling Rate
Note: The FIFO buffer will be updated at the faster of the two output data rates (OSM or OSA).
* RES<0,0> available, all others will default to full power mode.
** RES<0,0> and RES<0,1> available, all others will default to full power mode.
Before changing the ODR of a sensor, both sensors should be in stand-by. Write the new ODR value(s) to
ODCNTL, and then enable the sensor(s).
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Page 43 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
CNTL1 - Control Register 1
Control register that controls the main feature set.
Register
Addr
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
CNTL1
39h R/W 00h
R/W
RST
SRST
STEN
STPOL
Reserved
COTC
Reserved
Bit 1
Bit 0
SPARE_0039<1> SPARE_0039<0>
SRST Software Reset function
SRST = 0 – no action
SRST = 1 – start POR routine
STEN - ST enable. This bit enables the self-test mode that will produce a change in both the
accelerometer and magnetometer transducers and can be measured in the output registers.
STEN = 0 – ST is disabled
STEN = 1 – ST is enabled.
STPOL – Accelerometer and Magnetometer ST polarity.
STPOL = 0 – ST polarity is positive
STPOL = 1 – ST polarity is negative.
COTC enables the command test function
COTC= 0 – no action
COTC = 1 – sets AAh to COTR register, when the COTR register is read, COTC is
cleared and STR = 55h.
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
CNTL2 - Control Register 2
This is used to enable and disable the sensors.
Register
Addr
CNTL2
3Ah R/W 00h
R/W
POR
Wrt
Bit 7
RST SPARE_003A<7>
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
TEMP_EN
Gsel<1>
Gsel<0>
RES<1>
RES<0>
MAG_EN
ACCEL_EN
TEMP_EN controls the operating mode of the ASIC_AO’s temperature sensors. MAG_EN
must also be enabled for temperature data to be converted. Output data rate is
locked to the magnetometer’s OSM.
Temp_EN = 0 – stand-by mode
Temp_EN = 1 – operating mode, magnetometer and temperature output registers are
updated at the selected output data rate.
GSEL<1, 0> selects the acceleration range of the accelerometer outputs per the following
table.
GSEL<1> GSEL<0> Range
0
0
+/-2g
0
1
+/-4g
1
0
+/-8g
1
1
+/-16g
Selected Acceleration Range
RES<1, 0> selects the resolution of both sensors.
Accelerometer Magnetometer
RES<1> RES<0> over sample
over sample
0
0
4
2
0
1
32
16
1
0
maximum
maximum
1
1
maximum
maximum
Selected resolution range
MAG_EN controls the operating mode of the ASIC_AO’s magnetometer sensors.
MAG_EN = 0 – stand-by mode.
MAG_EN = 1 – operating mode, magnetometer output registers are updated at the
selected output data rate.
ACCEL_EN controls the operating mode of the ASIC_AO’s accelerometer
ACCEL_EN = 0 – stand-by mode.
ACCEL_EN = 1 – operating mode, accelerometer output registers are updated at the
selected output data rate.
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Page 45 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
COTR - Command Test Response
This register can be used to verify proper communication functionality. It always has a byte value of
0x55h unless the COTC bit in CNTL1 is set. At that point this value is set to 0xAAh. The byte value is
returned to 0x55h after reading this register.
Register
Addr
R/W
POR
COTR
3Ch
R
55h
Wrt
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Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
COTR<7>
COTR<6>
COTR<5>
COTR<4>
COTR<3>
COTR<2>
COTR<1>
COTR<0>
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Page 46 of 61
PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
BUF_CTRL_1,2,3
These registers control the buffer sample buffer operation.
Register
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
BUF_CTRL_1
Addr
77h R/W 00h
R/W
RST
SMT_TH<7>
SMT_TH<6>
SMT_TH<5>
SMT_TH<4>
SMT_TH<3>
SMT_TH<2>
SMT_TH<1>
SMT_TH<0>
BUF_CTRL_2
78h R/W 00h
RST SPARE_0078<7> SPARE_0078<6> SPARE_0078<5> SPARE_0078<4> SPARE_0078<3>
BUF_M<1>
BUF_M<0>
SMT_TH<8>
BUF_CTRL_3
79h R/W 00h
RST
BUF_MY
BUF_MZ
BUF_TEMP
BFI_EN
BUF_AX
BUF_AY
BUF_AZ
BUF_MX
SMP_TH<8,0> Sample Threshold - determines the number of data bytes that will trigger a
watermark interrupt or will be saved prior to a trigger event. The maximum number of
data bytes is 384 (example - 32 samples of 3 axis of accel and 3 axis of mag by 2
bytes per axis).
BUF_M1<1,0> - selects the operating mode of the sample buffer
BUF_M<1> BUF_M<0> Mode
Description
0
0
FIFO
The buffer collects 384 bytes of data until full,
collecting new data only when the buffer is not full.
0
1
Stream
The buffer holds the last 384 bytes of data. Once
the buffer is full, the oldest data is discarded to
make room for newer data.
1
1
0
1
When a trigger event occurs (logic high input on
TRIG pin), the buffer holds the last data set of
Trigger SMP[6:0] samples before the trigger event and
then continues to collect data until full. New data is
collected only when the buffer is not full.
The buffer holds the last 384 bytes of data. Once
the buffer is full, the oldest data is discarded to
FILO
make room for newer data. Reading from the
buffer in this mode will return the most recent data
first.
Sample Threshold
Operation
Specifies how many
buffer samples are
needed to trigger a
watermark interrupt.
Specifies how many
buffer samples are
needed to trigger a
watermark interrupt.
Specifies how many
buffer samples before
the trigger event are
retained in the buffer.
Specifies how many
buffer samples are
needed to trigger a
watermark interrupt.
BFI_EN controls the buffer full interrupt
BUF_FIE = 0 – the buffer full interrupt, BFI is disabled
BUF_FIE = 1 – the buffer full interrupt, BFI will be triggered when the buffer is full
BUF_(AX, AY, AZ, MX, MY, MZ, TEMP) controls the data to be buffered.
BUF_(AX, AY,AZ, MX, MY, MZ, TEMP) = 0 – indicated data is not buffered
BUF_(AX, AY,AZ, MX, MY, MZ, TEMP)= 1 – indicated data is buffered
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PART NUMBER:
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
KMX62-1031
Rev. 2.0
20-Oct-15
BUF_CLEAR
Latched buffer status information and the entire sample buffer are cleared when any data is written to
this register.
Register
Addr
R/W
BUF_CLEAR
7Ah
W
POR
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
OTF
BUFCLR<7>
BUFCLR<6>
BUFCLR<5>
BUFCLR<4>
BUFCLR<3>
BUFCLR<2>
BUFCLR<1>
BUFCLR<0>
BUF_STATUS_1,2,3
This register reports the status of the sample buffer.
Register
Addr
R/W
POR
BUF_STATUS_1
7Bh
R
00h
BUF_STATUS_2
7Ch
R
BUF_STATUS_3
7Dh
R
Wrt
Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
SMP_LEV<7>
SMP_LEV<6>
SMP_LEV<5>
SMP_LEV<4>
SMP_LEV<3>
SMP_LEV<2>
SMP_LEV<1>
SMP_LEV<0>
00h
SMP_PAST<5>
SMP_PAST<4>
SMP_PAST<3>
SMP_PAST<2>
SMP_PAST<1>
SMP_PAST<0>
BUF_TRIG
SMP_LEV<8>
00h
SMP_PAST<13> SMP_PAST<12> SMP_PAST<11> SMP_PAST<10>
SMP_PAST<9>
SMP_PAST<8>
SMP_PAST<7>
SMP_PAST<6>
SMP_LEV<8:0> Sample Level; reports the number of data bytes that have been stored in
the sample buffer. If this register reads 0, no data has been stored in the buffer. If the
buffer data is read past this level the part will return 32,767 (maximum value).
Buffered Outputs
1
2
3
4
5
6
7
Maximum sets
192
96
64
48
38
32
27
Maximum bytes
384
384
384
384
380
384
378
BUF_TRIG reports the status of the buffer’s trigger function if this mode has been selected.
When using trigger mode, a buffer read should only be performed after a trigger event.
SMP_PAST<8:0> Sample over flow; reports the number of data bytes that have been
missed since the sample buffer was filled. If this register reads 0, the buffer has not
over flowed. This is cleared for “BUF_CLEAR” command and when the data is read
from “BUF_READ”
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
BUF_READ
Data in the buffer can be read according to the BUF_M settings in BUF_CTRL2 by executing this
command. More samples can be retrieved by continuing to toggle SCL after the read command is
executed. Data should be read using auto-increment. Additional samples cannot be written to the
buffer while data is being read from the buffer using auto-increment mode. Output data is in 2’s
Complement format.
Register
Addr
R/W
BUF_READ
7Eh
R
POR
Wrt
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Bit 7
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
Bit 0
BUF<7>
BUF<6>
BUF<5>
BUF<4>
BUF<3>
BUF<2>
BUF<1>
BUF<0>
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Page 49 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Sample Buffer Feature Description
The sample buffer feature of the ASIC_AO accumulates and outputs data based on how it is configured.
There are 4 buffer modes available. Data is collected at the highest ODR specified by OSMA:OSMD or
OSAA:OSAD in the Output Data Control Register. Each buffer mode accumulates data, reports data, and
interacts with status indicators in a slightly different way.
FIFO Mode
Data Accumulation
Sample collection stops when the buffer is full.
Data Reporting
Data is reported with the oldest byte of the oldest sample first (X_L or X based
on resolution).
Status Indicators
A watermark interrupt occurs when the number of samples in the buffer reaches
the Sample Threshold. The watermark interrupt stays active until the buffer
contains less than this number of samples. This can be accomplished through
clearing the buffer or reading greater than SMPX.
SMPX = SMP_LEV[8:0] – SMP_TH[8:0]
Equation 1: Samples Above Sample Threshold
Stream Mode
Data Accumulation
Sample collection continues when the buffer is full; older data is discarded to
make room for newer data.
Data Reporting
Data is reported with the oldest sample first (uses FIFO read pointer).
Status Indicators
A watermark interrupt occurs when the number of samples in the buffer reaches
the Sample Threshold. The watermark interrupt stays active until the buffer
contains less than this number of samples. This can be accomplished through
clearing the buffer or explicitly reading greater than SMPX samples (calculated
with Equation 1).
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Trigger Mode
Data Accumulation
When a logic high signal occurs on the TRIG pin, the trigger event is asserted
and SMP_TH[8:0] samples prior to the event are retained. Sample collection
continues until the buffer is full.
Data Reporting
Data is reported with the oldest sample first (uses FIFO read pointer).
Status Indicators
When a physical interrupt occurs and there are at least SMP_TH[8:0] samples in
the buffer, BUF_TRIG in BUF_STATUS_REG2 is asserted.
FILO Mode
Data Accumulation
Sample collection continues when the buffer is full; older data is discarded to
make room for newer data.
Data Reporting
Data is reported with the newest byte of the newest sample first (Z_H or Z based
on resolution).
Status Indicators
A watermark interrupt occurs when the number of samples in the buffer reaches
the Sample Threshold. The watermark interrupt stays active until the buffer
contains less than this number of samples. This can be accomplished through
clearing the buffer or explicitly reading greater than SMPX samples (calculated
with Equation 1).
Buffer Operation
The following diagrams illustrate the operation of the buffer conceptually. Actual physical
implementation has been abstracted to offer a simplified explanation of how the different buffer
modes operate. Regardless of the selected mode, the buffer fills sequentially, two-byte at a
time and one set_count number of bytes at the highest ODR. Figure 7 shows one 14-byte data
sample with all devices (accelerometer, temp sensor and magnetometer) enabled. Note the
location of the FILO read pointer versus that of the FIFO read pointer. Figure 8 shows one 12byte data sample with accelerometer and magnetometer enabled and temperature sensor
disabled. Figure 8 - Figure 17 represent a 10-sample version of the buffer (for simplicity), with
Sample Threshold set to 8.
Note: When the BUF_CLEAR command is asserted, the buffer read pointer is moved to the
location of the buffer write pointer.
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Note: If the buffer control states that a particular sensor’s data should be buffered, but that
sensor is not enabled, then all buffer entries for that sensor will be that sensor’s last ADC
conversion prior to it being disabled.
buffer write pointer (Sample Level) ---->
Index
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Byte
ACCEL X_L
ACCEL X_H
ACCEL Y_L
ACCEL Y_H
ACCEL Z_L
ACCEL Z_H
MAG X_L
MAG X_H
MAG Y_L
MAG Y_H
MAG Z_L
MAG Z_H
TEMP_L
TEMP_H
<---- FIFO read pointer
<---- FILO read pointer
Figure 7. One Buffer Sample with accelerometer, temperature sensor and magnetometer all enabled
Index
Byte
0
ACCEL X_L
<---- FIFO read pointer
1
ACCEL X_H
2
ACCEL Y_L
3
ACCEL Y_H
4
ACCEL Z_L
5
ACCEL Z_H
6
MAG X_L
7
MAG X_H
8
MAG Y_L
9
MAG Y_H
10
MAG Z_L
11
MAG Z_H
<---- FILO read pointer
buffer write pointer (Sample Level) ---->
12
Figure 8. One Buffer Sample with accelerometer and magnetometer enabled and temperature sensor
disabled
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Note in Figure 9 the location of the FILO read pointer versus that of the FIFO read pointer. The
buffer write pointer shows where the next sample will be written to the buffer.
Index
0
1
2
buffer write pointer
(Sample Level) →
Sample
Data0
Data1
Data2
← FIFO read pointer
← FILO read pointer
3
4
5
6
7
8
9
← Sample Threshold
Figure 9. Buffer Filling
The buffer continues to fill sequentially until the Sample Threshold is reached. Note in Figure
10 the location of the FILO read pointer versus that of the FIFO read pointer.
Index
0
1
2
3
4
5
6
buffer write pointer →
7
8
9
Sample
Data0
Data1
Data2
Data3
Data4
Data5
Data6
← FIFO read pointer
← FILO read pointer
← Sample Threshold
Figure 10. Buffer Approaching Sample Threshold
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
In FIFO, Stream, and FILO modes, a watermark interrupt is issued when the number of
samples in the buffer reaches the Sample Threshold. In trigger mode, this is the point where
the oldest data in the buffer is discarded to make room for newer data.
buffer write pointer →
Index
0
1
2
3
4
5
6
7
8
9
Sample
Data0
Data1
Data2
Data3
Data4
Data5
Data6
Data7
← FIFO read pointer
← Sample Threshold/FILO read pointer
Figure 11. Buffer at Sample Threshold
In trigger mode, data is accumulated in the buffer sequentially until the Sample Threshold is
reached. Once the Sample Threshold is reached, the oldest samples are discarded when new
samples are collected. Note in Figure 12 how Data0 was thrown out to make room for Data8.
Trigger write pointer →
Index
0
1
2
3
4
5
6
7
8
9
Sample
Data1
Data2
Data3
Data4
Data5
Data6
Data7
Data8
← Trigger read pointer
← Sample Threshold
Figure 12. Additional Data Prior to Trigger Event
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
After a trigger event occurs, the buffer no longer discards the oldest samples, and instead
begins accumulating samples sequentially until full. The buffer then stops collecting samples,
as seen in Figure 13. This results in the buffer holding SMP_TH[8:0] samples prior to the
trigger event, and SMPX samples after the trigger event.
Index Sample
0
Data1 ← Trigger read pointer
1
Data2
2
Data3
3
Data4
4
Data5
5
Data6
6
Data7
7
Data8 ← Sample Threshold
8
Data9
9
Data10
Figure 13. Additional Data After Trigger Event
In FIFO, Stream, FILO, and Trigger (after a trigger event has occurred) modes, the buffer
continues filling sequentially after the Sample Threshold is reached. Sample accumulation after
the buffer is full depends on the selected operation mode. FIFO and Trigger modes stop
accumulating samples when the buffer is full, and Stream and FILO modes begin discarding the
oldest data when new samples are accumulated.
Index
0
1
2
3
4
5
6
7
8
9
Sample
Data0
Data1
Data2
Data3
Data4
Data5
Data6
Data7
Data8
Data9
← FIFO read pointer
← Sample Threshold
← FILO read pointer
Figure 14. Buffer Full
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
After the buffer has been filled in FILO or Stream mode, the oldest samples are discarded when
new samples are collected. Note in Figure 15 how Data0 was thrown out to make room for
Data10.
Index Sample
0
Data1 ← FIFO read pointer
1
Data2
2
Data3
3
Data4
4
Data5
5
Data6
6
Data7
7
Data8 ← Sample Threshold
8
Data9
9
Data10 ← FILO read pointer
Figure 15. Buffer Full – Additional Sample Accumulation in Stream or FILO Mode
In FIFO, Stream, or Trigger mode, reading one sample from the buffer will remove the oldest
sample and effectively shift the entire buffer contents up, as seen in Figure 16.
buffer write pointer →
Index
0
1
2
3
4
5
6
7
Sample
Data1
Data2
Data3
Data4
Data5
Data6
Data7
Data8
8
9
Data9
← FIFO read pointer
← Sample Threshold
← FILO read pointer
Figure 16. FIFO Read from Full Buffer
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
In FILO mode, reading one sample from the buffer will remove the newest sample and
leave the older samples untouched, as seen in
Figure 17.
buffer write pointer →
Index
0
1
2
3
4
5
6
7
Sample
Data0
Data1
Data2
Data3
Data4
Data5
Data6
Data7
8
9
Data8
← FIFO read pointer
← Sample Threshold
← FILO read pointer
Figure 17. FILO Read from Full Buffer
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Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Notice
Precaution on using KIONIX Products
1. Our Products are designed and manufactured for application in ordinary electronic equipment (such as AV
equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment,
etc.). If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment
(Note 1), transport equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car
equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of
human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the KIONIX
sales representative in advance. Unless otherwise agreed in writing by KIONIX in advance, KIONIX shall not be
in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from
the use of any KIONIX’s Products for Specific Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
2. KIONIX designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities,
adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any
property, which a failure or malfunction of our Products may cause. The following are examples of safety
measures:
a) Installation of protection circuits or other protective devices to improve system safety
b) Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3. Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, KIONIX shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any KIONIX’s Products under
any special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation
of product performance, reliability, etc., prior to use, must be necessary:
a) Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
b) Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
c) Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
d) Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
e) Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
f) Sealing or coating our Products with resin or other coating materials
g) Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
h) Use of the Products in places subject to dew condensation
4. The Products are not subject to radiation-proof design.
5. Please verify and confirm characteristics of the final or mounted products in using the Products.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 58 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying
power exceeding normal rated power; exceeding the power rating under steady-state loading condition may
negatively affect product performance and reliability.
7. De-rate Power Dissipation (Pd) depending on ambient temperature (Ta). When used in sealed area, confirm the
actual ambient temperature.
8. Confirm that operation temperature is within the specified range described in the product specification.
9. KIONIX shall not be in any way responsible or liable for failure induced under deviant condition from what is
defined in this document.
Precaution for Mounting / Circuit board design
1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect
product performance and reliability.
2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with
the KIONIX representative in advance.
For details, please refer to KIONIX Mounting specification.
Precautions Regarding Application Examples and External Circuits
1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of
the characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2. You agree that application notes, reference designs, and associated data and information contained in this
document are presented only as guidance for Products use. Therefore, in case you use such information, you are
solely responsible for it and you must exercise your own independent verification and judgment in the use of such
information contained in this document. KIONIX shall not be in any way responsible or liable for any damages,
expenses or losses incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take
proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating
will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body /
equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature /
humidity control).
Precaution for Storage / Transportation
1. Product performance and soldered connections may deteriorate if the Products are stored in the places where:
a) the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
b) the temperature or humidity exceeds those recommended by KIONIX
c) the Products are exposed to direct sunshine or condensation
d) the Products are exposed to high Electrostatic
2. Even under KIONIX recommended storage condition, solderability of products out of recommended storage time
period may be degraded. It is strongly recommended to confirm solderability before using Products of which
storage time is exceeding the recommended storage time period.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 59 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent
leads may occur due to excessive stress applied when dropping of a carton.
4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using
Products of which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on KIONIX Products label is for KIONIX’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade
act, please consult with KIONIX representative in case of export.
Precaution Regarding Intellectual Property Rights
1. All information and data including but not limited to application example contained in this document is for
reference only. KIONIX does not warrant that foregoing information or data will not infringe any intellectual
property rights or any other rights of any third party regarding such information or data. KIONIX shall not be in any
way responsible or liable for infringement of any intellectual property rights or other damages arising from use of
such information or data.
2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of KIONIX
or any third parties with respect to the information contained in this document.
Other Precaution
1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of KIONIX.
2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior
written consent of KIONIX.
3. In no event shall you use in any way whatsoever the Products and the related technical information contained in
the Products or this document for any military purposes, including but not limited to, the development of massdestruction weapons.
4. The proper names of companies or products described in this document are trademarks or registered trademarks
of KIONIX, its affiliated companies or third parties.
General Precaution
1. Before you use our Products, you are requested to carefully read this document and fully understand its contents.
KIONIX shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of
any KIONIX’s Products against warning, caution or note contained in this document.
2. All information contained in this document is current as of the issuing date and subject to change without any
prior notice. Before purchasing or using KIONIX’s Products, please confirm the latest information with a KIONIX
sales representative.
3. The information contained in this document is provided on an “as is” basis and KIONIX does not warrant that all
information contained in this document is accurate and/or error-free. KIONIX shall not be in any way responsible
or liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors
of or concerning such information.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 60 of 61
Digital Tri-axis Magnetometer/
Tri-axis Accelerometer
Specifications
PART NUMBER:
KMX62-1031
Rev. 2.0
20-Oct-15
Revision History
REVISION DESCRIPTION
DATE
1.0
29 May 2015
2.0
Initial Release
Updated Writing/Reading Description in I2C
Updated current consumption diagrams
Updated pin description table
Added Notice
Revised environmental spec (RoHS + REACH)
20 Oct 2015
"Kionix" is a registered trademark of Kionix, Inc. Products described herein are protected by patents issued or pending. No license is granted by implication or otherwise
under any patent or other rights of Kionix. The information contained herein is believed to be accurate and reliable but is not guaranteed. Kionix does not assume
responsibility for its use or distribution. Kionix also reserves the right to change product specifications or discontinue this product at any time without prior notice. This
publication supersedes and replaces all information previously supplied.
36 Thornwood Dr. – Ithaca, NY 14850
tel: 607-257-1080 – fax:607-257-1146
www.kionix.com - [email protected]
© 2015 Kionix – All Rights Reserved
Page 61 of 61