311CHAPTER 16 SERIAL INTERFACE CHANNEL 0 (μPD78058F SUBSERIES)8 9ACKSCK0SB0 (SB1)SCK0SB0 (SB1)8 9 10 11ACK(e) Acknowledge signal (ACK)The acknowledge signal is used to check serial data reception between transmitter and receiver.Figure 16-18. Acknowledge Signal[When output in synchronization with 11th clock SCK0][When output in synchronization with 9th clock SCK0]Remark The dotted line indicates READY status.The acknowledge signal is one-shot pulse to be generated at the falling edge of SCK0 after 8-bit datatransfer. It can be positioned anywhere and can be synchronized with any clock SCK0.After 8-bit data transmission, the transmitter checks whether the receiver has returned the acknowledgesignal. If the acknowledge signal is not returned for the preset period of time after data transmission, itcan be judged that data reception has not been carried out correctly.
