CHAPTER 13 SERIAL INTERFACE CHANNEL 0
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User’s Manual U11302EJ4V0UM
Figure 13-9. Example of Serial Bus Configuration with SBI
Caution
When replacing the master CPU/slave CPU, a pull-up resistor is necessary for the
serial clock line (SCK0) as well because serial clock line (SCK0) input/output switching
is carried out asynchronously between the master and slave CPUs.
Master CPU
SCK0
SB0 (SB1)
SCK0
SB0 (SB1)
SCK0
SB0 (SB1)
SCK0
SB0 (SB1)
Slave CPU
Address 1
Slave CPU
Address 2
Slave IC
Address N
Serial clock
Serial data bus
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•
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V
DD
Содержание mPD780208 Subseries
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