32.0 GT/s Lane 0123 Equalization Control (G5LANEEQCTL_0) – Offset AFC
32.0 GT/s Lane 0123 Equalization Control
Bit Range | Default | Access | Field Name and Description |
31:28 | 0xF | RW | Lane 3 Upstream Port 32.0 GT/s Transmitter Preset (L3UPTP) 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 | 0xF | RW | Lane 3 Downstream Port 32.0 GT/s Transmitter Preset (L3DPTP) 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 | 0xF | RW | Lane 2 Upstream Port 32.0 GT/s Transmitter Preset (L2UPTP) 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 | 0xF | RW | Lane 2 Downstream Port 32.0 GT/s Transmitter Preset (L2DPTP) 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 | 0xF | RW | Lane 1 Upstream Port 32.0 GT/s Transmitter Preset (L1UPTP) 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 | 0xF | RW | Lane 1 Downstream Port 32.0 GT/s Transmitter Preset (L1DPTP) 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 | 0xF | RW | Lane 0 Upstream Port 32.0 GT/s Transmitter Preset (L0UPTP) 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 | 0xF | RW | Lane 0 Downstream Port 32.0 GT/s Transmitter Preset (L0DPTP) 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 |