Acke Operations - NEC PD78056F User Manual

CHAPTER 16 SERIAL INTERFACE CHANNEL 0 ( PD78058F SUBSERIES)
(a) When ACKE = 1 upon completion of transfer
1
SCK0
SB0 (SB1)
ACKE
(b) When set after completion of transfer
SCK0 6 7
SB0 (SB1) D2 D1
ACKE
(c) When ACKE = 0 upon completion of transfer
SCK0 1
SB0 (SB1)
ACKE
SCK0
SB0 (SB1) D2 D1
ACKE
Figure 16-23. ACKE Operations
2 7 8
D7 D6 D2 D1
8 9
D0
If set during this period and ACKE = 1
at the falling edge of the next SCK0
2 7 8
D7 D6 D2 D1
(d) When "ACKE = 1" period is short
D0
If set and cleared during this period
and ACKE = 0 at the falling edge of SCK0
9
ACK signal is output
D0 ACK
at 9th clock
When ACKE = 1 at this point
ACK
ACK signal is output for
a period of one clock
just after setting
9
D0 ACK signal is not output
When ACKE = 0 at this point
ACK signal is not output
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