Altera CPRI v6.0 MegaCore Function Manual do Utilizador Página 38
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Signal Name Direction Description
nego_protocol_complete Input
Indicates the CPRI protocol version negotiation is
complete.
This signal is available only if you turn on Enable start-up
sequence state machine in the CPRI v6.0 parameter
editor.
Asserting this signal advances the start-up sequence state
machine from state C to state D. The IP core writes the
value of this signal to the nego_protocol_complete field
of the START_UP_SEQ register at offset 0x24.
nego_cm_complete Input
Indicates the Control and Management negotiation is
complete.
This signal is available only if you turn on Enable start-up
sequence state machine in the CPRI v6.0 parameter
editor.
Asserting this signal advances the start-up sequence state
machine from state D to state E. The IP core writes the
value of this signal to the nego_cm_complete field of the
START_UP_SEQ register at offset 0x24.
nego_vss_complete Input
Indicates the Vendor Specific negotiation is complete.
This signal is available only if you turn on Enable start-up
sequence state machine in the CPRI v6.0 parameter
editor.
Asserting this signal advances the start-up sequence state
machine from state E to state F. The IP core writes the
value of this signal to the nego_vss_complete field of the
START_UP_SEQ register at offset 0x24.
nego_l1_timer_expired Input If you do not turn on Enable L1 inband protocol
negotiator in the CPRI v6.0 parameter editor, drive this
signal from your user-defined L1 timer to indicate that the
L1 timer has expired.
Note that if you do not turn on Enable L1 inband
protocol negotiator, user logic is expected to maintain an
L1 timer outside the IP core.
This signal is available only if you turn on Enable start-up
sequence state machine in the CPRI v6.0 parameter
editor.
If you also turn on Enable L1 inband protocol negotiator
in the CPRI v6.0 parameter editor, you should tie this
signal low so it does not interfere with the internal L1
timer.
3-8
Start-Up Sequence Following Reset
UG-01156
2014.08.18
Altera Corporation
Functional Description
Send Feedback
- 101 Innovation Drive 1
- San Jose, CA 95134 1
- Contents 2
- About the CPRI v6.0 IP Core 5
- Device Family Support 7
- IP Core Verification 8
- Release Information 10
- Related Information 11
- Installation and Licensing 13
- 2014.08.18 14
- File Name Description 15
- CPRI v6.0 IP Core Parameters 18
- Parameter Range Default 20
- Parameter Description 20
- Adding the Clean-Up PLL 23
- Adding the External TX PLL 24
- Simulating Altera IP Cores 27
- Understanding the Testbench 28
- Running the Testbench 28
- Parameter Value 29
- Functional Description 31
- Information 35
- AUX Interface 39
- AUX Interface Signals 40
- AUX RX Interface Data Signals 41
- AUX TX Interface Data Signals 42
- AUX Interface Synchronization 47
- Auxiliary Latency Cycles 47
- Direct IQ Interface 51
- Direct HDLC Serial Interface 57
- RX MII Signals 62
- TX MII Signals 63
- MII Status Signals 64
- CPU Interface Signals 66
- Specifying the Control Word 67
- Auto-Rate Negotiation 70
- Extended Delay Measurement 71
- Resolution 72
- Deterministic Latency 73
- CPRI Link 75
- Interface to the External PLL 78
- Testing Features 79
- CPRI v6.0 IP Core Signals 82
- Clock Name 86
- Direction 86
- CPRI v6.0 IP Core Registers 90
- 2015.02.16 91
- INTR Register 92
- L1_STATUS Register 92
- L1_CONFIG Register 93
- BIT_RATE_CONFIG Register 94
- PROT_VER Register 95
- TX_SCR Register 96
- RX_SCR Register 96
- CM_CONFIG Register 97
- CM_STATUS Register 98
- START_UP_SEQ Register 98
- START_UP_TIMER Register 99
- FLSAR Register 100
- CTRL_INDEX Register 100
- TX_CTRL Register 101
- RX_CTRL Register 102
- RX_ERR Register 102
- LOOPBACK Register 103
- RX_BFN Register 103
- Bits Field Name Type Value on 104
- Description 104
- TX_DELAY Register 105
- RX_DELAY Register 106
- TX_EX_DELAY Register 107
- RX_EX_DELAY Register 107
- ROUND_TRIP_DELAY Register 108
- XCVR_BITSLIP Register 108
- UG-01156 110
- Subscribe 110
- Send Feedback 110
- Altera Corporation 112
- Additional Information 113
- How to Contact Altera 114
- Typographic Conventions 114
- Visual Cue Meaning 115
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