Register changes take effect at the SCL rising edge during
the last acknowledge (ACK ) from slave.
In Figure 3 there is a write example shown, for a device at a
randomly chosen address'00110100
2
'.
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w = write (SDA = “0”)
r = read (SDA = “1”)
ack = acknowledge (SDA pulled down by slave)
rs = repeated start
FIGURE 3. Example I
2
C Write Cycle
When a READ function is to be accomplished, a WRITE func-
tion must precede the READ function.
Figure 3, shows a read example for a device at a random
chosen address '00110101
2
'.
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FIGURE 4. Example I
2
C Read Cycle
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FIGURE 5. I
2
C Timing Diagram
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