Cinterion
®
EHS6 AT Command Set
19.7 AT^SSPI
EHS6_ATC_V03.001 15/12/3
Confidential / Released
Page 468 of 513
ACK which is transmitted only if all bytes are successfully transferred. During a Read Transfer, an ACK is sent
when the I²C slave device notifies that it has recognized the I²C Slave Address.
Not Acknowledge:
During a Transmit Transfer, a NAK is given when the I²C Slave Device notifies a failure to receive either the I²C
Slave Address or a data byte. In this case, a Stop Condition is sent to the I²C device.
During a Receive Transfer, a NAK is transmitted only when the I²C does not receive any reponse for the I²C Slave
Address. The I²C device never acknowledges the validity of the received data (by sending an ACK the master
acknowledges each received byte to the slave).
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