Altera JESD204B IP Instrukcja Użytkownika Strona 79
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Signal Width Direction Description
csr_cf[]
5 Output Indicates the number of control words per frame
clock period per link. The transport layer can use
this signal as a run-time parameter.
csr_lane_powerdown[]
L Output Indicates which lane is powered down. You need
to set this signal if you have configured the link
and want to reduce the number of active lanes.
csr_rx_testmode[]
4 Output Indicates the address space that is reserved for DLL
testing within the JESD204B IP core.
• 0—reserved for the IP core.
• 1—program different tests in the transport
layer.
Refer to the csr_rx_testmoderegister.
Signal Width Direction Description
Out-of-band (OOB)
jesd204_rx_int
1 Output Interrupt pin for the JESD204B IP core. Interrupt
is asserted when any error is detected. Configure
the rx_err_enable register to set the type of error
that can trigger an interrupt.
Signal Width Direction Description
Debug or Testing
jesd204_rx_dlb_data[]
L*32 Input
Optional signal for parallel data to the DLL in TX
to RX loopback testing.
(26)
jesd204_rx_dlb_data_
valid[]
L Input
Optional signal to indicate valid data for each byte
in TX to RX loopback testing.
(26)
jesd204_rx_dlb_kchar_
data[]
L*4 Input Optional signal to indicate the K character value
for each byte in TX to RX loopback testing.
(26)
jesd204_rx_dlb_
errdetect[]
L*4 Input
Optional signal to indicate 8B/10B error.
(26)
jesd204_rx_dlb_
disperr[]
L*4 Input
Optional signal to indicate running disparity.
(26)
(26)
This signal is only for internal testing purposes. Tie this signal to low.
4-42
Receiver
UG-01142
2015.05.04
Altera Corporation
JESD204B IP Core Functional Description
Send Feedback
- JESD204B IP Core User Guide 1
- Contents 2
- Item Description 4
- Datapath Modes 8
- IP Core Variation 8
- Run-Time Configuration 9
- Channel Bonding 10
- About the JESD204B IP Core 13
- Getting Started 15
- Upgrading IP Cores 16
- IP Core Status Description 17
- Design Walkthrough 20
- Programming an FPGA Device 25
- Pin Assignments 26
- JESD204B IP Core Parameters 30
- Parameter Value Description 31
- JESD204B IP Core Testbench 35
- Configuration Preset Value 36
- Testbench Simulation Flow 37
- Subscribe 38
- Frame Clock 39
- Transmitter 41
- TX Data Link Layer 42
- Configura‐ 43
- Description 43
- MSB 6 5 4 3 2 1 LSB 43
- User Data Phase 44
- Receiver 45
- RX Data Link Layer 46
- Frame Alignment 47
- Lane Alignment 47
- ILAS Data 48
- Initial Lane Synchronization 48
- RX PHY Layer 49
- Operation 50
- Scrambler/Descrambler 51
- SYNC_N Signal 51
- Link Reinitialization 53
- Link Startup Sequence 54
- Device Clock 57
- Link Clock 58
- Local Multi-Frame Clock 59
- Clock Correlation 60
- Reset Scheme 61
- Reset Sequence 62
- Registers 80
- Access Type Definition 81
- Design Example Components 84
- PLL Reconfiguration 85
- Operation Avalon-MM 86
- Interface Signal 86
- Byte Address 86
- Offset (6bits) 86
- Bit Value 86
- Transceiver Reset Controller 87
- Pattern Generator 87
- Pattern Checker 88
- Transport Layer 89
- F Parameter f 90
- (txframe_clk frequency) f 90
- (rxframe_clk frequency) 90
- TX Path Data Remapping 100
- Altera Corporation 100
- Send Feedback 100
- UG-01142 104
- 2015.05.04 104
- F FRAMECLK_DIV TX Latency 105
- Parameter Description Value 106
- Related Information 113
- RX Path Data Remapping 114
- Serial Port Interface (SPI) 117
- Control Unit 118
- Memory Block (ROM) 119
- Finite State Machine (FSM) 120
- System Parameters 121
- Run-Time Reconfiguration 124
- System Interface Signals 125
- Signal Clock 128
- Direction Description 128
- PHY (Stratix V and Arria V) 133
- Implementation Guidelines 139
- Programmable RBD Offset 140
- Programmable LMFC Offset 143
- K K K K K RK K K K K 146
- D D D DK D D 146
- DK D DK K K 146
- Clocking Scheme 148
- JESD204B Parameters 148
- SPI Programming 149
- Additional Information 155
- Date Version Changes 156
- How to Contact Altera 157
- Contact Method Address 158
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