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What is on-chip ROM (FCU firmware) (read only)?

Latest Updated:06/20/2013

Question:

What is on-chip ROM (FCU firmware) (read only)?

Answer:

The on-chip ROM (FCU firmware) (read only) area is where a dedicated sequencer (FCU) for programming of the ROM (flash memory for code storage) and data flash (flash memory for data storage) is stored.
To write ROM/data flash, the FCU needs to be first transferred from the on-chip ROM (FCU firmware) to the FCU-RAM area.
For more information, please refer to the "ROM (Flash Memory for Code Storage)" and "Data Flash (Flash Memory for Data Storage)" chapters of the hardware manual.
Suitable Products
RX62N, RX621
RX62T
RX610
RX62G