BMA150 Bosch Sensortec, BMA150 Datasheet - Page 8

• Manufacturer Part Number: BMA150
• Description: 3-AXIS ACCELEROMETER DIGITAL I/F
• Manufacturer: Bosch Sensortec

Specifications of BMA150

• Axis: X, Y, Z
• Acceleration Range: ± 2g, 4g, 8g
• Sensitivity: 256LSB/g, 128LSB/g, 64LSB/g
• Voltage - Supply: 2.4 V ~ 3.6 V
• Output Type: Digital
• Bandwidth: 3kHz
• Interface: I²C, SPI
• Mounting Type: Surface Mount
• Package / Case: 12-LGA
• For Use With: DM180021 - KIT STARTER MPLAB FOR PIC18F MCU828-1013 - BMA150 TRIBOX DEMO BOARD W/USB828-1009 - BMA150 DAUGHTERCARD FOR DEV KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 0273 141 043; 828-1003-2

3. Global memory map
The global memory map of BMA150 has three levels of access:
The memory of BMA150 is realized in diverse physical architectures. Basically BMA150 uses
volatile memory registers to operate. The volatile part of the memory can be changed and read
quickly. Part of the volatile memory (“image”) is a copy of the non-volatile memory (EEPROM).
The EEPROM can be used to set default values for the operation of the sensor IC. The
EEPROM is write only. The register values are copied to the image registers after power on or
soft reset. The download of all EEPROM bytes to image registers is also done when the content
of one EEPROM byte has been changed by a write command.
All operational and default setting registers are accessible through serial interface with a
standard protocol:
Rev. 1.6
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such
as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Note: Specifications within this document are subject to change without notice.
Memory Region
Operational
Registers
Default Setting
Registers
Bosch Sensortec
Reserved Registers
EEPROM
Registers
Registers
Registers
Register
Register
Type of
Control
Setting
Status
Data
−
−
−
−
−
−
−
−
−
−
−
Chip identification, chip version
Acceleration data, temperature
Activating self test, soft reset,
switch to sleep mode etc.
Interrupt status and self test
status
Customer usable status bytes
Functional settings (range,
bandwidth)
Interrupt settings
Default settings of functional
and interrupt settings
Trimming values
Customer reserved data
storage
Bosch Sensortec Reserved
Memory
Function of Register
Content
Data registers, control registers,
status registers, interrupt settings
Default values for operational
registers, acceleration and
temperature trimming values
Internal trimming registers
Triaxial, digital acceleration sensor
Data sheet
BMA150
Page 8
Read / Write
Read / Write
Read / Write
Read / Write
Command
Read
Read
Read
Write
Write
Write
Write
Access Level
Direct access via serial interface
Access blocked by default;
Access enabled by setting control
bit in operational registers via
serial interface
Protected
non-volatile (hard coded)
Volatile / non-volatile
non-volatile
non-volatile
non-volatile
non-volatile
Bosch Sensortec
Volatile
volatile
volatile
volatile
volatile
volatile
30 October 2008