NEC PD750008 User Manual
Page 175
Advertising
155
CHAPTER 5 PERIPHERAL HARDWARE FUNCTIONS
Figure 5-58. Acknowledge Signal
[When output in phase with the 11th clock of SCK]
[When output in phase with the 9th clock of SCK]
The acknowledge signal is a one-shot pulse output in phase with the falling edge of SCK after 8-bit
data transfer. This signal may be synchronized with any clock of SCK.
The transmitter checks if the receiver returns the acknowledge signal after 8-bit data transfer. If the
acknowledge signal is not returned after a specified period of time, the transmitter can assume that
the reception failed.
SCK
SB0, SB1
8
9
10
11
ACK
SB0, SB1
8
9
ACK
SCK
Advertising