User's Manual

Hardware Development Guide of Module Product
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Figure 3-4 USB Typical Circuit Application
3.8 Serial Interface
3.8.1 SPI (Serial Peripheral Interface) Bus Interface
3.8.1.1 Description of PINs
The definition of SPI interface signaling is defined as shown in Table 3-7.
Table 3-7 Definition of SPI Signal
PIN Signal Name I/O Type Function
39 SPI_ CS_N O SPI segment
40 SPI_ CLK O SPI clock
41 SPI_MISO_DATA B Main input, slave output
42 SPI_MOSI_DATA B Main input, slave output
3.8.1.2 Electric Feature
The SPI bus of ZM5202 is configured as the master equipment, and there are three
modes for SPI:
Running mode: Basic running mode.