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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 159
UG585 (v1.11) September 27, 2016
Chapter 6: Boot and Configuration
PCAP Bridge Module
For deployment, the PCAP bridge is a main component in the configuration of the PL and to
decrypt/authenticate the images. The bridge is described in various subsections of section
6.4 Device Boot and PL Configuration.
Device Security Module
The DevC contains a security management module that provides these functions:
Monitors the system security and can assert a security reset when conflicting status is detected
that could indicate inconsistent system configuration or tampering.
Controls and monitors the PL configuration logic through the APB interface.
Controls the ARM CoreSight debug access port (DAP) and debug levels.
Disables the on-chip BootROM code at the end of BootROM execution to protect its contents
from being read by setting the write-once devcfg.ROM_SHADOW register.
The device security features and functions are described in Chapter 32, Device Secure Boot.
XADC Interface
The XADC interface is one path to access the hardened analog-to-digital converters in the PL voltage
domain. The two other paths and the information on how to access the XADC are described in
Chapter 30, XADC Interface.
X-Ref Target - Figure 6-3
Figure 6-3: DevC Block Diagram
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