Maxim-integrated DS4830 Optical Microcontroller Instrukcja Użytkownika Pobierz pdf (Strona 18)

DS4830 User’s Guide

2.4.4.2 – Memory Map When Executing from Utility ROM

When executing from the utility ROM:

 Read and write operations of SRAM memory are executed normally.

 Reading of flash memory is executed normally. Writing to flash memory requires the use of the utility ROM

routines.

 One page (byte access mode) or both pages (word access mode) of the flash memory can be accessed as data

with an offset of 8000h as determined by the CDA0 bit.

Figure 2-4 illustrates the mapping of the SRAM and flash memory segments into data memory space when code is

executing from the utility ROM memory segment.

Figure 2-4: Memory Map When Executing from Utility ROM

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 226 227

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Maxim-integrated DS4830 Optical Microcontroller Instrukcja Użytkownika Strona 18