Specifications

BMA180
Preliminary data sheet
Bosch Sensortec
Rev. 1.0 Page 62 / - proprietary information - 06 March 2009
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Specifications within this document are preliminary and subject to change without notice. Document is not intended for publication.
Abbreviations:
S Start
P Stop
ACKS Acknowledge by slave
ACKM Acknowledge by master
NACKM Not acknowledge by master
Figure 15: I
2
C multiple write
To be able to access registers in read mode, first address should first be send in write mode.
Then a stop and a start conditions are issued and data bytes are transferred with automatic
address increment:
Figure 16: I
2
C multiple read
Figure 16 shows a typical I
2
C transfer to read out acceleration data. Address register is first
written to BMA180, the RW=0 (lowest acceleration data located to address 02h). I
2
C transfer is
stopped and restarted with RW=1, address are automatically incremented; 2 bytes are
sequentially read out.