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Avalue ECM-QB User Manual

Page 39

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ECM-QB User

’s Manual

ECM-QB User

’s Manual 39

Item

Options

Description

PCI ROM Priority

EFI Compatible ROM

Legacy ROM

In case of multiple Option ROMs (Legacy
and EFI Compatible), specifies what PCI
Option ROM to launch.

PCI Latency Timer

32 PCI Bus Clocks
64 PCI Bus Clocks
96 PCI Bus Clocks

128 PCI Bus Clocks
160 PCI Bus Clocks
192 PCI Bus Clocks
224 PCI Bus Clocks
248 PCI Bus Clocks

Value to be programmed into PCI Latency
Timer Register

VGA Palette Snoop

Disabled

Enabled

Enables or Disables VGA palette
Registers Snooping.

PERR# Generation

Disabled

Enabled

Enables or Disables PCI device to
generate PERR#

SERR# Generation

Disabled

Enabled

Enables or Disables PCI device to
generate SERR#

Relaxed Ordering

Disabled

Enabled

Enables or Disables PCI Express Device
Relaxed ordering.

Extended Tag

Disabled

Enabled

If ENABLED, allows Device to use 8-bit
Tag field as a requester.

No Snoop

Disabled

Enabled

Enables or Disables PCI Express Device
No Snoop option.

Maximum Payload

Auto

128 Bytes
256 Bytes
512 Bytes

1024 Bytes
2048 Bytes
4096 Bytes

Set Maximum Payload of PCI Express
Device or allow System BIOS to select the
value

Maximum Read Request

Auto

128 Bytes
256 Bytes
512 Bytes

1024 Bytes
2048 Bytes
4096 Bytes

Set Maximum Read Request size of PCI
Express Device or allow System BIOS to
select the value

Automatic ASPM

Disabled

Auto

Force L0

Automatically enable ASPM based on
reported capabilities and known issues.

Extended Synch

Disabled

Enabled

If ENABLED allows generation of
Extended Synchronization patterns.