SMB380 Jennic, SMB380 Datasheet - Page 34

• Manufacturer Part Number: SMB380
• Description: Smb380 Triaxial Acceleration Sensor
• Manufacturer: Jennic

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
high period of SC
Acknowledge:
After start condition each b te of data transfer is followed b
transmitter let the SDA line high (no pull down) and generates a high SCK pulse. If SMB380 has
been addressed an
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. 1.3
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7211RB11
SDI
SCK
. Specifications are subject to change without notice.
data bit is transferred
Start condition
S
K puls
d da
e (see
ta transfe
during
y
figure
Triaxial acceleration sensor
r h
each SCK p
Preliminary Data Sheet
as performed correctly
13).
SMB380
Page 34
ulse. Data on SDA line must remain stab
it generates a low SDA level (active
y an acknowledge
Bosch Sensortec
18-September-2007
Stop condition
P
le during
bit. The