Altera Stratix V Avalon-ST Instrukcja Użytkownika Strona 88

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Bits Description Default Value Access
[31:5] Reserved 0 RO
Table 5-19: Link Capabilities 2 Register - 0x0AC
Bits Description Default Value Access
[0] Reserved 0 RO
[3:1] Link speeds supported
1 (2.5 GT/s)
3 (5.0 GT/s)
7 (8.0 GT/s)
RO
[31:4] Reserved 0 RO
Table 5-20: Link Control and Status 2 Register - 0x0B0
Bits Description Default Value Access
[3:0] Target Link Speed
1: Gen1
2: Gen2
3: Gen3
RWS
[4] Enter Compliance 0 RWS
[5] Hardware Autonomous Speed Disable 0 RW
[6] Selectable De-emphasis 0 RO
[9:7] Transmit Margin 0 RWS
[10] Enter Modified Compliance 0 RWS
[11] Compliance SOS 0 RWS
[15:12] Compliance Preset/De-emphasis 0 RWS
[16] Current De-emphasis Level 0 RO
[17] Equalization Complete 0 RO
[18] Equalization Phase 1 Successful 0 RO
[19] Equalization Phase 2 Successful 0 RO
[20] Equalization Phase 3 Successful 0 RO
[21] Link Equalization Request 0 RW1C
[31:22] Reserved 0 RO
5-14
PCI Express Capability Structure
UG-01097_sriov
2014.12.15
Altera Corporation
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