346
CHAPTER 17 SERIAL INTERFACE CHANNEL 0 (
µ
PD78078 SUBSERIES)
Figure 17-23. ACKE Operations
(a) When ACKE = 1 upon completion of transfer
(b) When set after completion of transfer
(c) When ACKE = 0 upon completion of transfer
(d) When “ACKE = 1” period is short
SB0 (SB1)
ACKE
1
2
7
8
9
D7
D6
D2
D1
D0
ACK
When ACKE = 1 at this point
ACK signal is output
at 9th clock
SCK0
SB0 (SB1)
ACKE
7
8
9
D1
D0
ACK
6
D2
If set during this period and ACKE = 1
at the falling edge of the next SCK0
ACK signal is output for
a period of one clock
just after setting
SCK0
SB0 (SB1)
ACKE
1
2
7
8
9
D7
D6
D2
D1
D0
When ACKE = 0 at this point
ACK signal is not output
SCK0
SB0 (SB1)
ACKE
If set and cleared during this period
and ACKE = 0 at the falling edge of SCK0
ACK signal is not output
D2
D1
D0
SCK0
Содержание PD78076
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