Agilex™ 7 Hard Processor System Technical Reference Manual

ID 683567
Date 8/13/2024
Public
Document Table of Contents

4.2.8. OCRAM Firewall

The CCU implements a firewall on the OCRAM slave. The firewall is implemented as four secure regions in the 256 kbytes addressable OCRAM space (OCRAM_SPACE_0), each region can be programmed to be as small as 64 Kbytes or as big as 256 kbytes. By default all regions are secure.
Table 42.  OCRAM Address Ranges For Firewall
Memory Space Name Address Range
OCRAM_SPACE_0 0x000_FFE0_0000 to 0x000_FFE3_FFFF
Note: The total reserved address space for OCRAM is 1MB. Only 256K of the address space is populated while the rest is disabled.