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Figure 16-30. Command Transmission from Master Device to Slave Device
Master Device Processing (Transmitter)
Program Processing
Hardware Operation
Transfer Line
SCK0 Pin
SB0 (SB1) Pin
Slave Device Processing (Receiver)
Program Processing
Hardware Operation
Write
CMDT
Set
to SIO0
Serial Transmission
1
2
3
4
5
C7
C6
C5
C4
Command
CMDD
Serial Reception
Set
(Preparation for the Next Serial Transfer)
INTCSI0
Generation
6
7
8
9
C3
C2
C1
C0
SIO0
Command
analysis
Read
INTCSI0
Generation
Interrupt Servicing
ACKD
SCK0
Set
Stop
ACK
BUSY
READY
ACKT
BUSY
Set
Clear
ACK
BUSY
BUSY
Output
Output
Clear
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