Auto Acknowledgement | Cypress Semiconductors
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What is Automatic Acknowledgment (AutoACK)?
The CYFISPI radio has an automatic acknowledgment feature that allows it to automatically send an ACK to any valid packet that is received. The CYFISPI radio also uses the concept of transactions to allow the radio in the node to automatically power down after transmitting a packet and receiving an AutoACK instead of waiting for the firmware to power the radio down, conserving power and reducing firmware complexity.