Data Sheet

I2C interface STMPE610
12/56 Doc ID 15432 Rev 4
4.4 Write operations
A write is first performed to load the register address into the Address Counter without
sending a Stop condition. After the bus master receives an acknowledgement from the slave
device, it may start to send a data byte to the register (referred by the Address Counter).
The slave device again acknowledges and the bus master terminates the transfer with a
Stop condition.
If the bus master needs to write more data, it can continue the write operation without
issuing the Stop condition. Whether the Address Counter autoincrements or not after each
data byte write depends on the address of the register written into the Address Counter.
After the bus master writes the last data byte and the slave device acknowledges the receipt
of the last data, the bus master may terminate the write operation by sending a Stop
condition. When the Address Counter reaches the last memory address, it 'rolls-over' to the
next data byte write.