BMA150-0330SB0003 BOSCH, BMA150-0330SB0003 Datasheet - Page 34

• Manufacturer Part Number: BMA150-0330SB0003
• Description: Daughter Board
• Manufacturer: BOSCH

Specifications of BMA150-0330SB0003

• Silicon Manufacturer: Bosch
• Application Sub Type: Accelerometer - Three-Axis
• Kit Application Type: Sensing - Motion / Vibration / Shock
• Silicon Core Number: BMA150
• Kit Contents: Board

Start and stop conditions:
Data transfer begins by a falling edge on SDA when SCK is high (start condition (S) indicated by
I²C bus master). Stop condition (P) is a rising edge on SDA when SCK is high (see figure 12).
Bit transfer:
One data bit is transferred during each SCK pulse. Data on SDA line must remain stable during
high period of SCK pulse (see figure 13).
Acknowledge:
After start condition each byte of data transfer is followed by an acknowledge bit. The
transmitter let the SDA line high (no pull down) and generates a high SCK pulse. If BMA150 has
been addressed and data transfer has performed correctly it generates a low SDA level (active
pull down). Then SDA line is let free enabling the next transfer (see figure 14).
Figure 12: Timing diagram for I²C start and stop condition (SDI=SDA)
Rev. 1.5
© 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.
SDI
SCK
Start condition
S
Triaxial, digital acceleration sensor
Data sheet
BMA150
Page 34
Bosch Sensortec
Stop condition
30 May 2008
P