External Mcu Interface - Renesas R-IN32M3 Series User Manual

R-IN32M3 Series: Board design edition 11. External MCU/Memory Interface Pins
11.1

External MCU Interface

The external MCU interface is multiplexed with the external memory interface. When the MEMIFSEL pin is set to the
high level, it functions as the external MCU interface.
The external MCU interface supports the asynchronous SRAM interface mode and the synchronous SRAM interface
mode. When the level of a HIFSYNC pin is high, it functions as a synchronous SRAM interface, and when HIFSYNC is
set to low, it functions as an asynchronous SRAM interface. (see Table 11.1.)
Moreover, the external MCU interface supports the synchronous SRAM type transfer of clock synchronization so that
mass data can be accessed at high speed. This function is enabled by setting the MEMIFSEL and MEMCSEL pins to the
high level.
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Dec. 28, 2018