The GENMAI CPU board integrates an RZ/A1H (Arm® Cortex®-A9, 400 MHz operation, 324-pin BGA).

External View

Note: Function restrictions may apply depending on the method of use. For details, please inquire at time of purchase.

Top View of the Component Side

Top View of the Solder Side




  • NOR flash memory, serial flash memory, built-in NAND flash memory of the SD controller, or built-in NAND flash memory of the MMC controller can be selected as boot memory.
  • The board is equipped with a serial port (RS-232C or USB Mini-B) connector, USB connectors, CAN connectors, an SD card slot, an MMC card slot, Video input RCA connector, and a MOST I/F connector as standard peripheral function interfaces for the RZ/A1H.
  • The standard audio codecs are installed, so advanced development of an audio system is possible.
  • The USB connectors use the standard series A receptacle. The board pattern also allows for the mounting of a Mini-B receptacle for USB host/function module evaluation.
  • A LAN connector is equipped as standard, and software development and evaluation using Ethernet is possible.
  • The data bus, address bus, and pins for on-chip peripheral functions of the RZ/A1H are all connected to expansion connectors, allowing users to evaluate timing with a peripheral device that uses a measurement device, or develop an expansion board for their development needs.
  • A 20-pin Arm JTAG and a 20-pin CoreSight connector are provided for connecting to the RZ/A1H user debug interface.


Note: Function restrictions may apply depending on the method of use. For details, please inquire at time of purchase.

Item Specifications
  • ・R7S72100
  • ・Input (XIN) clock: 13.33 MHz
  • ・CPU clock (Iφ): Up to 400 MHz
  • ・Image-processing clock (Gφ): Up to 266.67 MHz
  • ・Internal bus clock (Bφ): Up to 133.33 MHz
  • ・External bus clock (CKIO): Up to 66.67 MHz
  • ・Peripheral clock 1 (P1φ): Up to 66.67 MHz
  • ・Peripheral clock 0 (P0φ): Up to 33.33 MHz
  • ・Built-in memory Large-capacity on-chip RAM: 10 MB
     External memory: 128 KB
     Instruction cache: 32 KB
     Operand cache: 32 KB
  • ・Power supply voltage: Internal: 1.18, I/O: 3.3 V
  • ・324-pin BGA 0.4-mm pitch (package code: PRBG0324GA-A)
  • ・NOR flash memory: 64 MB x 2
    •  ・Spansion S29GL512S10T
  • ・SDRAM: 64 MB x 2
    •  ・ISSI IS42S16320B-75
  • ・Serial flash memory: 64 MB x 3
    •  ・Spansion S25FL512SDPM
  • ・EEPROM: 16 KB x 1
  • ・Renesas R1EX24128ASAS0A
  • ・USB series A receptacle: 2 (can change to Mini-B receptacle)
  • ・LAN connector (RJ-45)
  • ・SD card slot (4-bit)
  • ・MMC card slot (8-bit)
  • ・Audio mini jacks (φ3.5): 2
  • ・Video input RCA connector: 4
  • ・CAN port connectors (3-pin, pin header): 2
  • ・TOSLINK connector (for SPDIF)
  • ・MOST interface connector
  • ・Serial port connector (can switch to 9-pin D-sub and USB Mini-B)
  • ・User debug interface connectors (20-pin Arm JTAG and 20-pin CoreSight): 1 of each
  • ・Expansion connectors: 34-pin x 1, 30-pin x 4, 20-pin x 4 (some not mounted)
  • ・DC power jack
  • Power supply LED: 1
  • User LEDs: 2
  • LAN status LEDs: 3
  • ・Reset switch: 1
  • ・User switches: 3 (NMI, IRQ6*, TEST)
  • ・Toggle switch: 1 (IRQ6*) *Parallel connection
  • ・System setting DIP switch: 6-pin x 1
  • ・Interface setting DIP switch: 4-pin x 1
  • ・Ethernet PHY setting DIP switch: 8-pin x 1



Block Diagram



User's manual

Please see here.


Board design data other

Please refer to from the download details. (download)



  • This product does not come with any development tools. Before using this board, please prepare the following development tools separately.
    - Integrated development environment
    - Compiler
    - In-circuit emulator
    (For more information, please see the ecosystem.)


Below you will find information to support the development of your application.


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