Kontron AT8050 User Manual Page 111

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Software Setup
95 AT8050
www.kontron.com
5.1.4.6 PCI Express Configuration sub-menu
Feature Option Description Help text
RTM Hot Plug Support
Enabled
Disabled
RTM hot plug support can be enabled/
disabled.
Enabled: Hot Plug for
RTM available.
Disabled: Hot Plug for
RTM not available.
Note: Need Power Cycle
with any changes.
AMC Slot Hot Plug Support
Enabled
Disabled
AMC slot hot plug support can be enabled/
disabled.
Enabled: Hot Plug for
AMC slot available.
Disabled: Hot Plug for
AMC slot not available.
Note: Need Power Cycle
with any changes.
Force Gen1 on AMC
Enabled
Disabled
Setting this to Enabled will force AMC in Gen1
Mode. Gen 2 will not be used.
Setting this to Enabled
will force AMC in Gen1
Mode.
Relaxed Ordering
Auto
Disabled
Enabled
The Relaxed Ordering attribute is applicable
and permitted to be Set with AtomicOp
Requests, where it affects the ordering of both
the Requests and their associated
Completions.
Enables/Disables PCI
Express Device Relaxed
Ordering.
Maximum Payload Size
Auto
128 Bytes
256 Bytes
512 Bytes
1024 Bytes
2048 Bytes
4096 Bytes
This field sets maximum TLP payload size for
the Function. As a Receiver, the Function must
handle TLPs as large as the set value. As a
Transmitter, the Function must not generate
TLPs exceeding the set value.
Set Maximum Payload of
PCI Express Device or
allow System BIOS select
the value.
Extended Tag Field
Auto
Disabled
Enabled
Enables a Function to use an 8-bit Tag field as a
Requester. If the bit is Clear, the Function is
restricted to a 5-bit Tag field.
If ENABLED, allows
Devoce to use 8-bit TAG
field as a requester.
No Snoop
Auto
Disabled
Enabled
The No Snoop attribute is applicable and
permitted to be Set with AtomicOp Requests,
but atomicity must be guaranteed regardless
of the No Snoop attribute value
Enables/Disables PCI
Express Device No Snoop
option.
Maximum Read Request
Size
Auto
128 Bytes
256 Bytes
512 Bytes
1024 Bytes
2048 Bytes
4096 Bytes
This field sets the maximum Read Request size
for the Function as a Requester. The Function
must not generate Read Requests with size
exceeding the set value.
Set Maximum Read
Request Size of PCI
Express Device or allow
System BIOS select the
value.
Extended Synch
Auto
Disabled
Enabled
When Enabled, this bit forces the transmission
of additional Ordered Sets when exiting the
L0s state and when in the Recovery state. This
mode provides external devices (e.g., logic
analyzers) monitoring the Link time to achieve
bit and Symbol lock before the Link enters the
L0 state and resumes communication.
If ENABLED, allows
generation of Extended
Synchronization
patterns.
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