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HPS Component Interfaces
2013.12.30
cv_54028
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This chapter describes the interfaces, including clocks and resets, implemented by the hard processor system
(HPS) component.
The majority of the resets can be enabled on an individual basis. The exception is the
h2f_reset
interface,
which is always enabled.
You must declare the clock frequency of each HPS-to-FPGA clock for timing purposes. Each possible clock,
including ones that are available from peripherals, has its own parameter for describing the clock frequency.
Declaring the clock frequency for HPS-to-FPGA clocks specifies how you plan to configure the PLLs and
peripherals, to enable TimeQuest to accurately estimate system timing. It has no effect on PLL settings.
Related Information
•
For Avalon protocol timing, refer to
Avalon Interface Specifications
.
•
on page 28-1
For information about instantiating the HPS component, refer to the
Instantiating the HPS Component
chapter.
•
For Advanced Microcontroller Bus Architecture (AMBA) Advanced eXtensible Interface (AXI) protocol
timing, refer to the AMBA AXI Protocol Specification v1.0, which you can download from the ARM info
center website.
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