Altera cyclone V Technical Reference page 646

9-10
The Boot Region
The MPU address map is divided into the following regions:
• The boot region
• The SDRAM region
• The FPGA slaves region
• The HPS peripherals region
Note: The
Related Information
ARM Infocenter
For more information about the MMU, refer to the Memory Management Unit chapter of the Cortex-A9
Technical Reference Manual, available on the ARM Infocenter website.
The Boot Region
The boot region is 1 MB in size, based at address 0. After power-on, or after reset of the system intercon‐
nect, the boot region is occupied by the boot ROM, allowing the Cortex-A9 MPCore to boot. Although
the boot region size is 1 MB, accesses beyond 64 KB are illegal because the boot ROM is only 64 KB.
The 1 MB boot region can be subsequently remapped to the bottom 1 MB of SDRAM region by adjusting
the L2 cache address filter.
Note: Alternatively, the boot region can be mapped to the 64 KB on-chip RAM.
Related Information
• Address Remapping
For more information about address remapping
• System Interconnect
Altera Corporation
bit in the register must be set before enabling the MMU.
SMP ACTLR
on page 7-11
on page 7-1
Cortex-A9 Microprocessor Unit Subsystem
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2016.10.28