Onboard Devices

Serial IO UART0 Settings

Serial IO UART0 Settings firmware setup page decoded from AMI HII/IFR resources.

Form ID: 0x84
Records: 5
Parents: SerialIo Configuration
Path: Setup / Chipset / PCH-IO Configuration / SerialIo Configuration / Serial IO UART0 Settings

Record 4563

Hardware Flow Control

Firmware Value

When enabled configures additional 2 GPIO pads for use as RTS/CTS signals for UART

Form: Serial IO UART0 Settings
Opcode: OneOf
Question ID: 0x10c2
VarStore: PchSetup
VarStore GUID: 4570B7F1-ADE8-4943-8DC3-406472842384
Offset: 0x6f7
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

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Record 4564

DMA Enable

Firmware Value

Enabled: UART OS driver will use DMA when possible.

Firmware help text

Enabled: UART OS driver will use DMA when possible. Disabled: OS driver will enforce PIO mode

Form: Serial IO UART0 Settings
Opcode: OneOf
Question ID: 0x10c3
VarStore: PchSetup
VarStore GUID: 4570B7F1-ADE8-4943-8DC3-406472842384
Offset: 0x6f0
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

Visibility / conditions

{"condition_id": 1793, "type": "SuppressIf", "offset": 523850, "expr": ["EqIdVal QuestionId: 0x10C3, Value: 0x1", "Not"]}

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Record 4565

Power Gating

Firmware Value

Disabled: No _PS0 _PS3 support, device is left in D0, after initialization Enabled: _PS0 _PS3 that supports getting device out of reset Auto: _PS0 and _PS3 detection through ACPI if device was initialized prior to first...

Firmware help text

Form: Serial IO UART0 Settings
Opcode: OneOf
Question ID: 0x10c4
VarStore: PchSetup
VarStore GUID: 4570B7F1-ADE8-4943-8DC3-406472842384
Offset: 0x6fe
Width: 1 byte(s)
Range: 0 to 2 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled
`2`	Auto	Standard defaultManufacturing default

Visibility / conditions

{"condition_id": 1794, "type": "SuppressIf", "offset": 523897, "expr": ["EqIdVal QuestionId: 0x101F, Value: 0x3", "Not"]}

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Record 4566

D0->D3 idle timeout (screen off)

Firmware Value

Default: 200 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Firmware help text

Default: 200 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Form: Serial IO UART0 Settings
Opcode: Numeric
Question ID: 0x10c5
VarStore: Setup
VarStore GUID: EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset: 0x6ac
Width: 2 byte(s)
Range: 1 to 10000 step 0

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 1795, "type": "SuppressIf", "offset": 523960, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

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Record 4567

D0->D3 idle timeout (screen on)

Firmware Value

Default: 200 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Firmware help text

Default: 200 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Form: Serial IO UART0 Settings
Opcode: Numeric
Question ID: 0x10c6
VarStore: Setup
VarStore GUID: EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset: 0x6ae
Width: 2 byte(s)
Range: 1 to 10000 step 0

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 1795, "type": "SuppressIf", "offset": 523960, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

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