Master Device Processing (Transmitter)
Program Processing
Hardware Operation
Transfer Line
SCK0 Pin
SB0 (SB1) Pin
Slave Device Processing (Receiver)
Program Processing
Hardware Operation
Figure 16-31. Data Transmission from Master Device to Slave Device
Write
to SIO0
Serial Transmission
1
2
3
D7
D6
D5
Serial Reception
INTCSI0
Generation
4
5
6
7
8
9
D4
D3
D2
D1
D0
Data
SIO0
Read
INTCSI0
Generation
Interrupt Servicing
(Preparation for the Next Serial Transfer)
ACKD
SCK0
Set
Stop
ACK
BUSY
READY
ACKT
BUSY
Set
Clear
ACK
BUSY
BUSY
Output
Output
Clear