External Mcu/Memory Interface Pins; Table 9.1 Mode Selection Of External Mcu/Memory Connection - Renesas R-IN32M4-CL3 User Manual

R-IN32M4-CL3 User's Manual: Board design edition
9.

External MCU/Memory Interface Pins

This LSI is able to connect an external MCU or memory.
The connection mode is decided by the signal level of the MEMIFSEL, MEMCSEL, HIFSYNC, and ADMUXMODE
pins as shown in Table 9.1.

Table 9.1 Mode Selection of External MCU/Memory Connection

Mode Setting
MEMIFSEL MEMCSEL
Low Low
High
High Low
High
Note: Before access to the CC-Link IE field, select the synchronous-SRAM supporting MCU
connection mode (MEMIFSEL high, MEMCSEL low, HIFSYNC high).
R18UZ0074EJ0100
Dec 24, 2019
HIFSYNC ADMUXMODE
— —
— —
—
Low
—
High
—
Low
—
High Low
High
9. External MCU/Memory Interface Pins
External Connection Mode
External memory interface
Asynchronous SRAM MEMC
External memory interface
Synchronous burst access MEMC
External MCU interface
Asynchronous-SRAM supporting MCU connection mode
External MCU interface
Synchronous-SRAM supporting MCU connection mode
Setting prohibited
Setting prohibited
External MCU interface
Synchronous-burst-transfer supporting MCU connection
mode
(address/data separated)
External MCU interface
Synchronous-burst-transfer supporting MCU connection
mode
(address/data multiplexed)
Note
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