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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.

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