Ricoh Di-C1.5a Manual page 381

On this board, the flash ROM contains the FCU
firmware, and the SRAM contains the system
data and user parameters. Even if the FCU is
changed, the system data and user parameters
are kept on the MBU board.
ROM
3MB flash ROMs for system software storage
2MB (16bit x 1MB) + 1MB (16bit x 512K)
SRAM
The SRAM for system and user parameter
storage is backed up by a lithium battery (battery
life: 5 years).
» 256 KB
Slide 381
No additional notes
MBU
381
Di-C1.5 Training