UPD78P4916 Datasheet, PDF (38/56 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

Serial Transfer Timing (Only SIO2)
No busy processing
SCK2
BUSY
tWSKL
tWSKH
7
8
tCYSK
At active-high
STRB
9
10
tDSTRB
Invalid busy
tWSTRB
Continue busy processing
SCK2
BUSY
STRB
tWSKL
tWSKH
7
8
tCYSK
9
10
tSBUSY
At active-high
tDSTRB
tWSTRB
µPD78P4916
1
2
10+n
tHBUSY
Terminate busy processing
SCK2
tWSKL
tWSKH
7
8
tCYSK
BUSY
At active-high
9
10+n
11+n
1
tHBUSY
tLBUSY
Caution Do not use busy control and strobe control whenever the external clock is selected as a serial
clock.
38