Components Description

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 (SYSRAM0, one port). When all of the islands off the power, SYSRAM0 losing data content.
  • 4K always RAM (SYSRAM1, one port). When all of the islands off the power, SYSRAM1 retains its data content.

Comments

Robinjack's picture Robinjack replied on

thank you dearly author , I found oneself this web site very helpful and its full of excellent healthy selective information ! , I as well thank you for the fantastic food plan post. website

Robinjack's picture Robinjack replied on

You’ll notice several contrasting points from New york Weight reduction eating plan and every one one may be useful. The first point will probably be authentic relinquishing on this excessive. lose weight website

Robinjack's picture Robinjack replied on

If I were the one having to write this content, all these readers would be disappointed. It’s a good thing you are the writer and you bring fresh ideas to us all. This is interesting. website

Pages