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• TrustZone support for on-chip RAM with 4 KB page granularity<br />

• Flexible address mapping capability<br />

• RAM byte-wise parity generation, checking, and interrupt support<br />

• Support for the following non-AXI features on the CPU (SCU) port:<br />

°<br />

°<br />

°<br />

°<br />

Zero line fill<br />

Pre-fetch hint<br />

Early BRESP<br />

Speculative line pre-fetch<br />

29.1.3 System Viewpoint<br />

A system viewpoint of the OCM is illustrated in Figure 29-2.<br />

X-Ref Target - Figure 29-2<br />

CPUs<br />

Snoop<br />

Control Unit<br />

AXI_ACP<br />

S0 S1<br />

M0 M1<br />

DDR<br />

AXI_HP<br />

S0 S1<br />

S0 S1<br />

On-chip RAM<br />

256 kB<br />

Figure 29‐2: OCM System Viewpoint<br />

Chapter 29: On‐Chip Memory (OCM)<br />

OCM<br />

Interconnect<br />

UG585_c29_02_022212<br />

<strong>Zynq</strong>‐<strong>7000</strong> EPP Technical Reference Manual www.xilinx.com 567<br />

UG585 (v1.2) August 8, 2012<br />

M<br />

All other Masters<br />

Via Central<br />

Interconnect

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