Altera JESD204B IP Manual de usuario Pagina 99
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Figure 5-5: TX Data Transmission
Junk datain Valid Data
Junk Sampled Data Valid Data
txframe_clk
txlink_clk
txframe_rst_n
txlink_rst_n
jesd204_tx_datavalid
TL.jesd204_tx_link_early_ready
jesd204_tx_datain[15:0]
LINK.jesd204_tx_link_ready
jesd204_tx_link_datain[31:0]
Figure 5-6: TX Data Transmission (For F = 8)
Junk datain Valid Data
Junk Sampled Data Valid Data
txlink_clk
txframe_rst_n
txlink_rst_n
jesd204_tx_datavalid
jesd204_tx_link_early_ready
jesd204_tx_datain[63:0]
LINK.jesd204_tx_link_ready
jesd204_tx_link_datain[31:0]
txframe_clk
T0 -->T1
When F = 8, the data latency for jesd204_tx_link_datain should always
be in an even latency link_clk count to ensure that the first valid data captured
by the TX link is T0 data followed by T1 data.
TX Path Data Remapping
The JESD204B IP core implements the data transfer in big endian format.
5-18
TX Path Data Remapping
UG-01142
2015.05.04
Altera Corporation
JESD204B IP Core Design Guidelines
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- 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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