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347
CHAPTER 17 SERIAL INTERFACE CHANNEL 0 (
µ
PD78078 SUBSERIES)
Figure 17-24. ACKD Operations
(a) When ACK signal is output at 9th clock of SCK0
(b) When ACK signal is output after 9th clock of SCK0
(c) Clear timing when transfer start is instructed in BUSY
Figure 17-25. BSYE Operation
SCK0
SB0 (SB1)
ACKD
7
8
9
D1
D0
ACK
6
D2
Transfer Start
Instruction
SIO0
Transfer Start
SB0 (SB1)
ACKD
ACK
9
SIO0
7
8
D1
6
D2
D0
Transfer Start
Instruction
Transfer Start
SCK0
SCK0
SB0 (SB1)
ACKD
ACK
9
Transfer Start
Instruction
SIO0
7
8
D1
6
D2
D0
D6
D7
BUSY
SCK0
SB0 (SB1)
BSYE
7
8
9
ACK
6
When BSYE = 1 at this point
BUSY
If reset during this period and
BSYE = 0 at the falling edge of SCK0
D2
D1
D0
Содержание PD78076
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