Altera cyclone V Technical Reference page 255

Hard processor system

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datastart Fields

Length of region in On-chip RAM for CRC validation.

Module Instance

Important: To prevent indeterminate system behavior, reserved areas of memory must not be accessed by

length Fields

System Manager

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Contains the byte offset into the On-chip RAM of the

start of the On-chip RAM region for the warm boot

CRC validation. The offset must be an integer

multiple of 4 (i.e. aligned to a word). The Boot ROM

code will set the top 16 bits to 0xFFFF and clear the

bottom 2 bits.

software or hardware. Any area of the memory map that is not explicitly defined as a register

space or accessible memory is considered reserved.

Contains the length (in bytes) of the region in the On-

chip RAM for the warm boot CRC validation. If the

length is 0, the Boot ROM won't perform CRC

calculation and CRC check to avoid overhead caused

by CRC validation. If the START + LENGTH exceeds

the maximum offset into the On-chip RAM, the Boot

ROM won't boot from the On-chip RAM. The length

must be an integer multiple of 4. The Boot ROM code

will clear the top 16 bits and the bottom 2 bits.

Base Address

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