NEC uPD78056Y - Manual (Page 327)

327
CHAPTER 16 SERIAL INTERFACE CHANNEL 0 (
µ
PD78054 Subseries)
Figure 16-27. Address Transmission from Master Device to Slave Device (WUP = 1)
1 2 3 4 5 6 7 8 9 SCK0 Pin
A7 A6 A5 A4 A3 A2 A1 A0 ACK BUSY SB0 (SB1) Pin
Program Processing
Serial Transmission
INTCSI0
Generation
ACKD
Set
SCK0
Stop
Hardware Operation
WUP
←
0
ACKT
Set
Program Processing
CMDD
Set
INTCSI0
Generation
ACK
Output
Hardware Operation
CMDT
Set
RELT
Set
CMDT
Set
Write
to SIO0
Interrupt Servicing
(Preparation for the Next Serial Transfer)
Master Device Processing (Transmitter)
Transfer Line
Slave Device Processing (Receiver)
CMDD
Clear
CMDD
Set
RELD
Set
Serial Reception
BUSY
Output
READY
(When SVA = SIO0)
Address
BUSY
Clear
BUSY
Clear