NEC 78014Y Series User Manual page 286

Address Transfer
SCK0
SB0 (SB1)
Command Transfer
SCK0
SB0 (SB1)
Data Transfer
SCK0
SB0 (SB1)
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Remark The broken line indicates the READY state.
The bus release signal and the command signal are output by the master device. BUSY is output by the
slave signal. ACK can be output by either the master or slave device (normally, the 8-bit data receiver
outputs).
Serial clocks continue to be output by the master device from 8-bit data transfer start to BUSY reset.
286
CHAPTER 15 SERIAL INTERFACE CHANNEL 0 ( µ PD78014 Subseries)
Figure 15-12. SBI Transfer Timings
A7
Bus Release
Signal
Command Signal
C7
D7
8 9
A0
Address
9
C0 ACK
Command
8 9
D0
ACK
Data
ACK BUSY
BUSY READY
BUSY
READY