R-IN32M3 Datasheet, PDF (36/116 Pages) Renesas Technology Corp – LSI for Industrial Ethernet

R-IN32M3 Series Data Sheet
2. Pin Information
The combinations of available operating mode setting pins in this product are as follows.
Boot Mode External Memory Boot External MCU Boot
External Serial Flash ROM Boot
External Memory
Slave Memory
External MCU Interface Slave Memory Interface External MCU Interface
Interface
Interface
MEMC Type Asynchronous Synchronous Asynchronous Synchronous Asynchronous Synchronous Asynchronous Synchronous
External Bus Width 16-bit 32-bit 16-bit 32-bit 16-bit 32-bit 16-bit 32-bit 16-bit 32-bit 16-bit 32-bit 16-bit 32-bit 16-bit 32-bit
BOOT1-0
00 00 00 00 10 10 10 10 01 01 01 01 01 01 01 01
MEMIFSEL
0000 1 1 1 1 0 0 0 0 1 1 1 1
MEMCSEL
0011 0 0 1 1 0 0 1 1 0 0 1 1
BUS32EN
HIFSYNC
HWRZSEL
0101 0 1 0 1 0 1 0 1 0 1 0 1
0
0
0
0
Note1 Note1
1
1
0
0
0
0
Note1 Note1
1
1
0
0
0
0
Note2 Note2
0
0
0
0
0
0
Note2 Note2
0
0
ADMUXMODE
0011 0 0 1 1 0 0 1 1 0 0 1 1
Caution: Any combination of operating mode setting pins other than the above is prohibited.
Notes 1. The mode of the external MCU interface is selectable by the level on the HIFSYNC pin.
HIFSYNC = 0: Asynchronous SRAM interface mode
HIFSYNC = 1: Synchronous SRAM interface mode
For details, see section 11, External MCU Interface, in the R-IN32M3 Series User’s Manual
(Peripheral Modules).
2. The external MCU interface HWRZ or HBENZ is selectable by the level on the HWRZSEL pin.
For details, see section 2.3.3, External Memory Interface Pins.
Remarks 1. The combination of operating-mode setting pins used to select booting for instruction
RAM (BOOT1-0 = 11) is the same as that for booting from external memory (BOOT1-0 =
00).
2. Asynchronous: Asynchronous SRAM memory controller (MEMCSEL = 0)
Synchronous: Synchronous burst access memory controller (MEMCSEL = 1)
R18DS0008EJ0401
Feb 28, 2017
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