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R-IN32M4-CL3 User's Manual: Board design edition
9.1.3
Synchronous-Burst-Transfer Supporting MCU Connection Mode
The following figure shows a general connection example in synchronous-burst-transfer supporting MCU connection
mode, when this LSI chip is connected as a slave device to an external MCU.
9.1.3.1
Address/Data Multiplexed Mode (ADMUXMODE = H)
R-IN32M4-CL3
Figure 9.5 Connection Example of 32-Bit External MCU Interface
R-IN32M4-CL3
Figure 9.6 Connection Example of 16-Bit External MCU Interface
R18UZ0074EJ0100
Dec 24, 2019
HBUSCLK
HD0-HD31
HCSZ
HPGCSZ
HBCYSTZ
HRDZ
HWRSTBZ
HWRZ0 / HBENZ0
HWRZ1 / HBENZ1
HWRZ2 / HBENZ2
HWRZ3 / HBENZ3
HWAITZ
Note2
HERROUTZ
VDD33 (3.3V)
ADMUXMODE
Note1
HWRZSEL
HBUSCLK
Note3
HA17-HA20
HD0-HD15
HCSZ
HPGCSZ
HBCYSTZ
HRDZ
HWRSTBZ
HWRZ0 / HBENZ0
HWRZ1 / HBENZ1
HWAITZ
Note2
HERROUTZ
VDD33 (3.3V)
ADMUXMODE
Note1
HWRZSEL
9. External MCU/Memory Interface Pins
External MCU
BUSCLK
D0-D31
CSZ
PGCSZ
BCYSTZ / ADV
RDZ
WRSTBZ
BENZ0
BENZ1
BENZ2
BENZ3
WAITZ
Interrupt, port pin
External MCU
BUSCLK
Note4
A17-A20
D0-D15
CSZ
PGCSZ
BCYSTZ / ADV
RDZ
WRSTBZ
BENZ0
BENZ1
WAITZ
Interrupt, port pin
Page 36 of 61
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