LM3561TMX National Semiconductor Corporation, LM3561TMX Datasheet - Page 21

• Manufacturer Part Number: LM3561TMX
• Description: Synchronous Boost Converter With 600ma High Side Led Driver And I2c-compatible Interface
• Manufacturer: National Semiconductor Corporation

I
START AND STOP CONDITIONS
The LM3561 is controlled via an I
START and STOP conditions classify the beginning and end
of the I
transitioning from HIGH to LOW while SCL is HIGH. A STOP
The I
free after a STOP condition. During data transmission the
I
START and a repeated START condition are equivalent func-
tion-wise. The data on SDA must be stable during the HIGH
2
2
C master can generate repeated START conditions. A
C-Compatible Interface
2
C bus is considered busy after a START condition and
2
C session. A START condition is defined as SDA
2
C-compatible interface.
FIGURE 12. Start and Stop Sequences
21
condition is defined as SDA transitioning from LOW to HIGH
while SCL is HIGH. The I
START and STOP conditions.
period of the clock signal (SCL). In other words, the state of
SDA can only be changed when SCL is LOW.
Figure 13
compatible Bus. See the Electrical Characteristics Table for
timing values.
show the SDA and SCL signal timing for the I
2
C master always generates the
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Figure 1
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and
2
C-