Internal memories

SPEAr1340 combines two built-in memory:

32 KB Boot ROM (BootROM)
Static RAM area (SRAM)

BootROM

BootROM refers to the on-chip 32 KB ROM, as well as firmware in a tube pre-stored in a memory. Supported boot devices:

Serial NOR Flash
Parallel NOR Flash
NAND Flash
USB OTG
UART
SD / MMC

BootROM firmware selects the boot device after reset by reading the status strap [3: 0] Contact.

Static RAM (SRAM)

Some of these memory areas used during the boot phase by flash BootROM. After downloading all areas of SRAM fully available for general-purpose applications.

Key Features:

32 KB of RAM (SYSTEM0, one port). When all of the islands off the power, SYSTEM0 losing data content.
4K always RAM (SYSRAM1, one port). When all of the islands off the power, SYSRAM1 retains its data content.

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BootROM​

Static RAM (SRAM)

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