ms4525do Measurement Specialties, ms4525do Datasheet - Page 12

• Manufacturer Part Number: ms4525do
• Description: Pcb Mounted Pressure Transducers
• Manufacturer: Measurement Specialties

MS4525DO
Transmission STOP Condition (P): The STOP condition is a unique situation on the bus created by the
master, indicating to the slaves the end of a transmission sequence (the bus is considered free after a STOP).
Acknowledge (ACK) / Not Acknowledge (NACK): Each byte (8 bits) transmitted over the I2C bus is followed
by an acknowledge condition from the receiver. This means that after the master pulls SCL low to complete the
transmission of the 8th bit, SDA will be pulled low by the receiver during the 9th bit time. If after transmission of
the 8th bit the receiver does not pull the SDA line low, this is considered to be a NACK condition.
If an ACK is missing during a slave to master transmission, the slave aborts the transmission and goes into idle
mode.
Handshake procedure (Hold Master): In a master-slave system, the master dictates when the slaves will
receive or transmit data. However, in some situations a slave device may need time to store received data or
prepare data to be transmitted. Therefore, a handshake procedure is required to allow the slave to indicate
termination of internal processing
MS4525DO
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January 2011
12/17