Spi Specification - Renesas R-IN32M3 User Manual

R-IN32M3 Module

SPI Specification

2.3
The R-IN32M3 Module offers a serial peripheral interface which is supported on the R-
IN32M3-EC controller. This communication interface uses 4 signal lines which are
connected on 9-pin male connector with 1.27-mm pitch as shown in Table 2.2.
The R-IN32M3 Module works always in slave mode and allow to transmit configuration and
process data to the host CPU.
Table 2.2 SPI Signal Description
Signal
SCLK
MOSI
MISO
/SS
SCLK
MOSI
MISO
R19UH0111ED0100 Rev.1.00
June 30, 2020
Description
Serial clock input (output from master)
Master output slave Input, or master out slave in (data output from
master)
Master input slave output, or master in slave out (data output from
slave)
Slave select (active low, output from master)
Figure 2.4 SPI Access Timing Chart
2. Host Interface
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