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Revision 2 SMH

Figure 7: Revision 2 SMH

32 bit ID: 0xXX445341

frame_info Base Address

offset_map Base Address

sensitivity_data_array Base Address

single_offset_map_length

sensitivity_data_tag_size

region_map Base Adress

SOF 32 bit CRC Signature

Reserved

Frame Info

Offset Maps

Sensitivity Data Array

Region Map

Header

Information

0x00000000

In revision 2 files, the sensitivity map header is an extension of revision 1 header format. The header

information provides basic information about the .smh revision 2, and includes all the revision 1 header

information fields. The additional fields include size of the sensitivity data tag size in bits, base addresses

for the region map, and 32-bit CRC signature of the corresponding .sof file.

The 32-bits ID of the sensitivity map header revision 2 is defined as follows:

• Bits 23:0—Altera sensitivity map header ID 0x445341

• Bits 24:31—a bit mask for the header information with bit 24 reserved

• Bit 25—indicates the presence of sensitivity tag information in the .smh

• Bits 27:26—reserved

• Bit 28—indicates the presence of 32-bit CRC signature of corresponding .sof

• Bits 29:31—reserved

Revision 2 SMH

ALTADVSEU

2015.05.04

Altera Corporation

Altera Advanced SEU Detection IP Core User Guide

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Altera Advanced SEU Detection IP Core Manuel d'utilisateur Page 10