Maxim Integrated DS4830 Optical Microcontroller - Manual (Page 17)

DS4830 User’s Guide
17
2.4.4.1 – Memory Map When Executing from Flash Memory
When executing from the flash memory:

Read and write operations of SRAM memory are executed normally.

The utility ROM can be read as data, starting at 8000h of the data space. The utility ROM cannot be written.
Figure 2-3 illustrates the mapping of the SRAM and utility ROM memory segments into data memory space when code is
executing from the flash memory segment.
Figure 2-3: Memory Map When Executing from Flash Memory