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Chapter 6
Reset Configuration
This chapter provides you with information about the various reset types and sources
supported by the AMC131.
Reset Types and Sources
The AMC131 supports the following reset types that affect the entire module:
•
Power reset
•
Hard reset
•
Soft reset
Limited resets that do not affect the entire board are also supported.
Power Reset
Power reset occurs when the power-on reset device changes from a power-off to a power-on
state. The power-off to power-on state occurs when either the payload power is turned on or
when the
power good
indication from the DC-to-DC converters is false and returns true.
A power reset also generates a hard reset (see
).
The AMC131 is held in reset until the PCI Express reference clock (FCLKA) source is
determined. The AMC.1 R2.0 specification requires that FCLKA is e-keyed. The AMC131 is
shipped from the factory configured for AMC.1 R2.0 e-keying of FCLKA. AMC.1 R1.0 carriers
do not e-key FCLKA. If the AMC131 does not come out of reset when powered on, it is likely
that FCLKA is not configured properly for the specific carrier. Refer to
Configuration - PCIe only” on page 39
for information on configuring FCLKA.
Summary of Contents for AMC131
Page 4: ...4 ...
Page 10: ...Contents 10 ...
Page 14: ...Tables 14 ...
Page 16: ...Figures 16 ...
Page 32: ...Chapter 2 Introduction 32 ...
Page 42: ...Chapter 3 Getting Started 42 ...
Page 82: ...Chapter 6 Reset Configuration 82 ...