32.0 GT/s Lane 12131415 Equalization Control (G5LANEEQCTL_12) – Offset b08
32.0 GT/s Lane 12131415 Equalization Control
Bit Range | Default | Access | Field Name and Description |
31:28 | 1111b | RW | Lane 15 Upstream Port 32.0 GT/s Transmitter Preset (L15UPTP) Field contains the Transmit Preset value sent or received during 32.0 GT/s Link Equalization.
Field usage varies as follows:
| | Operating | Crosslink | Usage |
| | Port | Supported | |
| | Direction | | |
| A | Downstream | Any | Field Contains The Value |
| | Port | | sent on the associoated lane |
| | | | during Link Equalization. |
| B | Upstream | 0b | Field is intended for debug |
| | Port | | and diagnostics. It Contains |
| | | | the value captured From the |
| | | | associated Lane during Link |
| | | | Equalization |
| | | | |
| | | | When Crosslink are supported,|
| | | | Case C (below) applies and |
| | | | this captured information |
| | | | is not visible to software. |
| | | | Vendor are encourage to |
| | | | provide an alternate |
| | | | mechanism to obtain this |
| | | | informations. |
| C | Upstram | 1b | Field is not used or |
| | Port | | affectedby the current Link |
| | | | Equalization. |
| | | | |
| | | | Field value will be used if |
| | | | negotiation a future |
| | | | crosslink switches the |
| | | | operating port Direction |
| | | | so that case A (above) |
| | | | applies. |
|
27:24 | 1111b | RW | Lane 15 Downstream Port 32.0 GT/s Transmitter Preset (L15DPTP) Transmitter Preset used for 32.0 GT/s equalization by this Port when the Port is operating as a Downstream Port. This field is ignored when the Port is operating as an Upstream Port.
For an Upstream Port if Crosslink Supported is 0b, this field is RsvdP . Otherwise, this field is HwInit |
23:20 | 1111b | RW | Lane 14 Upstream Port 32.0 GT/s Transmitter Preset (L14UPTP) Field contains the Transmit Preset value sent or received during 32.0 GT/s Link Equalization.
Field usage varies as follows:
| | Operating | Crosslink | Usage |
| | Port | Supported | |
| | Direction | | |
| A | Downstream | Any | Field Contains The Value |
| | Port | | sent on the associoated lane |
| | | | during Link Equalization. |
| B | Upstream | 0b | Field is intended for debug |
| | Port | | and diagnostics. It Contains |
| | | | the value captured From the |
| | | | associated Lane during Link |
| | | | Equalization |
| | | | |
| | | | When Crosslink are supported,|
| | | | Case C (below) applies and |
| | | | this captured information |
| | | | is not visible to software. |
| | | | Vendor are encourage to |
| | | | provide an alternate |
| | | | mechanism to obtain this |
| | | | informations. |
| C | Upstram | 1b | Field is not used or |
| | Port | | affectedby the current Link |
| | | | Equalization. |
| | | | |
| | | | Field value will be used if |
| | | | negotiation a future |
| | | | crosslink switches the |
| | | | operating port Direction |
| | | | so that case A (above) |
| | | | applies. |
|
19:16 | 1111b | RW | Lane 14 Downstream Port 32.0 GT/s Transmitter Preset (L14DPTP) Transmitter Preset used for 32.0 GT/s equalization by this Port when the Port is operating as a Downstream Port. This field is ignored when the Port is operating as an Upstream Port.
For an Upstream Port if Crosslink Supported is 0b, this field is RsvdP . Otherwise, this field is HwInit |
15:12 | 1111b | RW | Lane 13 Upstream Port 32.0 GT/s Transmitter Preset (L13UPTP) Field contains the Transmit Preset value sent or received during 32.0 GT/s Link Equalization.
Field usage varies as follows:
| | Operating | Crosslink | Usage |
| | Port | Supported | |
| | Direction | | |
| A | Downstream | Any | Field Contains The Value |
| | Port | | sent on the associoated lane |
| | | | during Link Equalization. |
| B | Upstream | 0b | Field is intended for debug |
| | Port | | and diagnostics. It Contains |
| | | | the value captured From the |
| | | | associated Lane during Link |
| | | | Equalization |
| | | | |
| | | | When Crosslink are supported,|
| | | | Case C (below) applies and |
| | | | this captured information |
| | | | is not visible to software. |
| | | | Vendor are encourage to |
| | | | provide an alternate |
| | | | mechanism to obtain this |
| | | | informations. |
| C | Upstram | 1b | Field is not used or |
| | Port | | affectedby the current Link |
| | | | Equalization. |
| | | | |
| | | | Field value will be used if |
| | | | negotiation a future |
| | | | crosslink switches the |
| | | | operating port Direction |
| | | | so that case A (above) |
| | | | applies. |
|
11:8 | 1111b | RW | Lane 13 Downstream Port 32.0 GT/s Transmitter Preset (L13DPTP) Transmitter Preset used for 32.0 GT/s equalization by this Port when the Port is operating as a Downstream Port. This field is ignored when the Port is operating as an Upstream Port.
For an Upstream Port if Crosslink Supported is 0b, this field is RsvdP . Otherwise, this field is HwInit |
7:4 | 1111b | RW | Lane 12 Upstream Port 32.0 GT/s Transmitter Preset (L12UPTP) Field contains the Transmit Preset value sent or received during 32.0 GT/s Link Equalization.
Field usage varies as follows:
| | Operating | Crosslink | Usage |
| | Port | Supported | |
| | Direction | | |
| A | Downstream | Any | Field Contains The Value |
| | Port | | sent on the associoated lane |
| | | | during Link Equalization. |
| B | Upstream | 0b | Field is intended for debug |
| | Port | | and diagnostics. It Contains |
| | | | the value captured From the |
| | | | associated Lane during Link |
| | | | Equalization |
| | | | |
| | | | When Crosslink are supported,|
| | | | Case C (below) applies and |
| | | | this captured information |
| | | | is not visible to software. |
| | | | Vendor are encourage to |
| | | | provide an alternate |
| | | | mechanism to obtain this |
| | | | informations. |
| C | Upstram | 1b | Field is not used or |
| | Port | | affectedby the current Link |
| | | | Equalization. |
| | | | |
| | | | Field value will be used if |
| | | | negotiation a future |
| | | | crosslink switches the |
| | | | operating port Direction |
| | | | so that case A (above) |
| | | | applies. |
|
3:0 | 1111b | RW | Lane 12 Downstream Port 32.0 GT/s Transmitter Preset (L12DPTP) Transmitter Preset used for 32.0 GT/s equalization by this Port when the Port is operating as a Downstream Port. This field is ignored when the Port is operating as an Upstream Port.
For an Upstream Port if Crosslink Supported is 0b, this field is RsvdP . Otherwise, this field is HwInit |