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MB86R02 'Jade-D' Hardware Manual V1.64
30 Serial Peripheral Interface (SPI)
This chapter describes the functionality and operation of the Serial Peripheral Interface (SPI).
30.1 Outline
The SPI is a serial interface used to execute synchronous communication. MB86R02 'Jade-D' has
two implementations of this module.
30.2 Features
The SPI unit has the following features:
•
Full duplex serial synchronous transmission
•
The following parameters of the transfer format are configurable:
a) Bit rate
b) Data length (1 ~ 32 bit)
c) Clock polarity
d) Phase
•
Supports 2 types of slave select signals
•
Only 1 slave is connectable
Example of SPI connection
Figure 30-1 shows an SPI connection example.
Note:
When the slave is active, the SPI_DI pin may be floating.
Figure 30-1 Example of SPI connection
30-1
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