Altera 40-Gbps Ethernet MAC and PHY MegaCore Function Manuale Utente Pagina 133
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Address Name Bit Description HW Reset
Value
Access
0x014 RX_AGGREGATE
[4] When asserted, indicates a change in
PCS-VLANE permutation. This status
bit clears on read.
1’b0 R
[3] When asserted, indicates a change in
lanes deskewed status. This status bit
clears on read.
1’b0 R
[2] When asserted, indicates a change in
PCS-VLANE tag drop position. This
status bit clears on read.
1’b0 R
[1] When asserted, indicates that all lanes
are locked and lane-to-lane deskew is
complete so that the 40-100GbE IP core
is in operating normally.
1’b0 R
[0] When asserted, indicates that all lanes
are word and alignment marker locked.
1b’0 R
Bit Error Flag Registers
Bit errors occur naturally from time to time on high speed serial links. The higher level Ethernet protocol
includes mechanisms to respond to errors and tally them appropriately. These lower level flags are useful
for tracking errors in a physical link and computing error rates.
Table 3-29: Bit Error Flag Registers
Address Name Bit Description HW
Reset
Value
Access
0x015 FRAMING_ERR
[31] When asserted, indicates that a framing error
has occurred on any lane. This status bit
clears on read.
1’b0 R
[19:0] When asserted, indicates that a framing error
has occurred on the corresponding physical
lane. This status bit clears on read.
0x0000
0
R
0x016 BIP_ERR [19:0] When asserted, indicates that a BIP (lane
parity) error has occurred on the
corresponding physical lane. This status bit
clears on read.
0x0000
0
R
3-86
Bit Error Flag Registers
UG-01088
2014.12.15
Altera Corporation
Functional Description
Send Feedback
- MegaCore Function User Guide 1
- Contents 2
- PHY MegaCore Function 4
- 40- or 100-GbE MAC 5
- Device Family Support 7
- IP Core Verification 9
- Simulation Environment 10
- Hardware Testing 10
- Module ALMs Logic Registers 11
- Release Information 21
- Item Description 22
- Getting Started 23
- OpenCore Plus IP Evaluation 24
- IP Core Parameters 25
- Parameter Type Range Default 28
- Parameter Description 28
- Simulating the IP Core 32
- Pin Assignments 33
- 40-100GbE IP Core Testbenches 36
- Testbenches with Adapters 37
- File Names Description 38
- Testbenches without Adapters 40
- Initializing the IP Core 46
- High Level System Overview 49
- 40-100GbE IP Core TX Datapath 50
- Address Insertion 51
- Length/Type Field Processing 52
- Frame Padding 52
- Client Interface 53
- Data Bus Width (Bits) 53
- 40GbE IP Core 100GbE IP Core 53
- 40-100GbE IP Core RX Datapath 67
- RX CRC Forwarding 69
- Address Checking 71
- Inter‑Packet Gap 71
- Pause Ignore 71
- Name Direction Description 73
- 100GbE CAUI–4 PHY 79
- Pause Transmission Logic 82
- Statistics Counters Interface 86
- Name Signal 87
- Direction 87
- Description 87
- Control Data Description 89
- Lane to Lane Deskew Interface 90
- MII Control 91
- MII Data 91
- PCS BER Monitor 92
- Control and Status Interface 98
- Signal Name Description 100
- UG-01088 101
- 2014.12.15 101
- Related Information 102
- Send Feedback 103
- Altera Corporation 103
- Functional Description 103
- Software Interface: Registers 123
- Register Description 124
- 40-100GbE IP Core Registers 126
- Address Name Applicable 128
- Device(s) 128
- Bit Description HW Reset 128
- Bits Description HW Reset 130
- Lock Status Registers 131
- Bit Error Flag Registers 133
- PCS Hardware Error Register 134
- BER Monitor Register 134
- Test Mode Register 135
- Test Pattern Counter Register 135
- MAC and PHY Reset Registers 136
- PCS‑VLANE Registers 138
- PRBS Registers 139
- 40GBASE-KR4 Registers 139
- Pause Registers 149
- MAC Hardware Error Register 151
- CRC Configuration Register 152
- MAC Address Registers 154
- Statistics Registers 155
- PMD Registers 163
- MDIO Registers 164
- Ethernet Glossary 166
- Term Definition 167
- Subscribe 169
- Core v12.0 Release 173
- 10GBASE-KR Registers 174
- Bit R/W Name Description 175
- Additional Information 190
- Date ACDS 191
- at offset 0x127), described 193
- How to Contact Altera 198
- Typographic Conventions 198
- Visual Cue Meaning 199
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