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SIO0
SCK0
SB0 (SB1)
ACKD
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SIO0
SCK0
SB0 (SB1)
ACKD
SCK0
SB0 (SB1)
BSYE
360
CHAPTER 16 SERIAL INTERFACE CHANNEL 0 ( µ PD78014Y Subseries)
Figure 16-26. ACKD Operations
(a) When ACK signal is output at 9th clock of SCK0
SIO0
SCK0
6
7
SB0 (SB1)
D2
D1
ACKD
(b) When ACK signal is output after 9th clock of SCK0
6
7
8
9
D2
D1
D0
(c) Clear timing when transfer start is instructed in BUSY
6
7
8
D2
D1
D0
Figure 16-27. BSYE Operation
6
7
8
D2
D1
D0
When BSYE = 1 at this point
8
9
D0
ACK
ACK
9
ACK
9
ACK
Transfer Start Instruction
Transfer Start
Transfer Start Instruction
Transfer Start
Transfer Start Instruction
BUSY
D7
BUSY
If reset during this period and
BSYE = 0 at the falling edge of SCK0
D6
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