Altera DisplayPort MegaCore Function Uživatelský manuál Strana 54
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Hodnocené. / 5. Na základě hodnocení zákazníků
Clocked Video Input Interface
The rxN_video_out interface may interface with a clocked video input (CVI). CVI accepts the following
video signals with a separate synchronization mode: datavalid, de, h_sync, v_sync, f, locked, and data.
The DisplayPort rxN_video_out interface has the following signals: rxN_vid_valid, rxN_vid_sol,
rxN_vid_eol, rxN_vid_sof, rxN_vid_eof, rxN_vid_locked, and rxN_vid_data.
The following table describes how to connect the CVI and DisplayPort sink signals.
Table 5-13: Connecting CVI Signals to DisplayPort Sink Stream 0 Signals
CVI Signal DisplayPort Sink Signal Comment
vid_data rx_vid_data
Video data
vid_datavalid
– Drive high because the video data is not oversam‐
pled.
vid_f
– Drive low because the video data is progressive.
vid_locked rx_vid_locked
The core asserts this signal when a stable stream is
present.
vid_de rx_vid_valid
Indicates the active picture region of a line.
vid_h_sync rx_vid_eol
The rx_vid_eol signal generates the vid_h_sync
pulse by delaying it (by 1 clock cycle) to appear in
the horizontal blanking period after the active
video ends (rx_vid_valid is deasserted).
vid_v_sync rx_vid_eof
The rx_vid_eof signal generates the vid_v_sync
pulse by delaying it (by 1 clock cycle) to appear in
the vertical blanking period after the active video
ends (rx_vid_valid is deasserted).
Example 5-1: Verilog HDL CVI — DisplayPort Sink Example
// CVI V-sync and H-sync are derived from delayed versions of the eol and eof signals
always @ (posedge clk_video)
begin
rx_vid_h_sync <= rx_vid_eol;
rx_vid_v_sync <= rx_vid_eof;
end
assign vid_data = rx_vid_data;
assign vid_datavalid = 1’b1;
assign vid_f = 1’b0;
assign vid_locked = rx_vid_locked;
5-18
Clocked Video Input Interface
UG-01131
2015.05.04
Altera Corporation
DisplayPort Sink
Send Feedback
- 101 Innovation Drive 1
- San Jose, CA 95134 1
- Contents 2
- Item Description 10
- Related Information 10
- About This IP Core 11
- Device Family Support 12
- IP Core Verification 12
- Getting Started 14
- Simulating the Design 15
- DisplayPort Source 17
- Source Functional Description 18
- Main Data Path 19
- Packetizer Path 20
- Measurement Path 20
- Blank Generator Path 20
- Multiplexer 20
- Source Parameters 21
- Parameter Description 22
- Source Interfaces 23
- Interface Signal Type Clock 26
- Port Direction Description 26
- Controller Interface 27
- AUX Interface 28
- Video Interface 28
- TX Transceiver Interface 29
- Secondary Stream Interface 30
- Audio Interface 32
- 7 B3 0 7 B2 0 7 B1 0 7 B0 0 33
- 31 24 23 16 15 8 7 0 33
- SP R PR P C U V 33
- 31 29 28 25 2430 27 26 23 0 33
- MSA Interface 34
- Source Clock Tree 35
- DisplayPort Sink 37
- Transceiver Management 38
- Sink Parameters 40
- Sink Interfaces 42
- Interface Port Type Clock 48
- Debugging Interface 50
- Bit Comments 51
- Clocked Video Input Interface 54
- RX Transceiver Interface 55
- Bit Signal Comments 59
- Sink Clock Tree 60
- Figure 5-11: Sink Clock Tree 61
- Subscribe 62
- FPGA Development Board 63
- Clock Recovery Core 65
- Clock Recovery Interface 67
- Video Input Port 71
- Transceiver and Clocking 72
- Datapath Options 73
- Standard PCS 74
- Required Hardware 75
- Description 77
- HSMC Connector J4A 77
- HSMC Connector J4B 78
- HSMC Connector J4C 80
- DP RX Connector J1 80
- DP RX Connector J2 81
- Design Walkthrough 83
- Set Up the Hardware 84
- File Type File Description 85
- Build the FPGA Design 86
- Load, and Run the Software 86
- View the Results 87
- Altera Corporation 100
- Send Feedback 100
- DisplayPort API Reference 102
- UG-01131 103
- 2015.05.04 103
- Locations 122
- Bit Bit Name Function 123
- DPTX_TX_STATUS 124
- Source MSA Registers 125
- DPTX0_MSA_VTOTAL 126
- DPTX0_MSA_HSP 126
- DPTX0_MSA_HSW 126
- DPTX0_MSA_HSTART 127
- DPTX0_MSA_VSTART 127
- DPTX0_MSA_VSP 127
- DPTX0_MSA_VSW 128
- DPTX0_MSA_HWIDTH 128
- DPTX0_MSA_VHEIGHT 128
- DPTX0_MSA_MISC0 129
- DPTX0_MSA_MISC1 129
- DPTX0_MSA_COLOUR 129
- DPTX_PRE_VOLT0 130
- DPTX_PRE_VOLT1 131
- DPTX_PRE_VOLT2 131
- DPTX_PRE_VOLT3 131
- Source Timestamp 132
- Source Audio Registers 133
- Source CRC Registers 134
- Source MST Registers 135
- DPTX_MST_VCPTAB0 136
- DPTX_MST_VCPTAB1 136
- DPTX_MST_VCPTAB2 137
- DPTX_MST_VCPTAB3 138
- DPTX_MST_VCPTAB4 138
- DPTX_MST_VCPTAB5 139
- DPTX_MST_VCPTAB6 139
- DPTX_MST_VCPTAB7 140
- DPTX_MST_TAVG_TS 141
- DPTX_AUX_CONTROL 141
- DPTX_AUX_CMD 142
- DPTX_AUX_BYTE0 143
- DPTX_AUX_BYTE1 143
- DPTX_AUX_BYTE2 143
- DPTX_AUX_BYTE3 144
- DPTX_AUX_BYTE4 144
- DPTX_AUX_BYTE5 144
- DPTX_AUX_BYTE6 145
- DPTX_AUX_BYTE7 145
- DPTX_AUX_BYTE8 145
- DPTX_AUX_BYTE9 146
- DPTX_AUX_BYTE10 146
- DPTX_AUX_BYTE11 146
- DPTX_AUX_BYTE12 147
- DPTX_AUX_BYTE13 147
- DPTX_AUX_BYTE14 148
- DPTX_AUX_BYTE15 148
- DPTX_AUX_BYTE16 148
- DPTX_AUX_BYTE17 149
- DPTX_AUX_BYTE18 149
- DPTX_AUX_RESET 149
- Location Name Address 150
- DPRX_RX_STATUS 154
- DPRX_BER_CONTROL 156
- Sink Timestamp 158
- Sink Bit-Error Counters 158
- Sink MSA Registers 159
- DPRX0_MSA_MVID 160
- DPRX0_MSA_NVID 160
- DPRX0_MSA_HTOTAL 160
- DPRX0_MSA_VTOTAL 160
- DPRX0_MSA_HSP 161
- DPRX0_MSA_HSW 161
- DPRX0_MSA_HSTART 161
- DPRX0_MSA_VSTART 162
- DPRX0_MSA_VSP 162
- DPRX0_MSA_VSW 162
- DPRX0_MSA_HWIDTH 163
- DPRX0_MSA_VHEIGHT 163
- DPRX0_MSA_MISC0 163
- DPRX0_MSA_MISC1 164
- DPRX0_VBID 164
- Sink Audio Registers 165
- DPRX0_AUD_AIF1 166
- DPRX0_AUD_AIF2 166
- DPRX0_AUD_AIF3 166
- Sink MST Registers 167
- DPRX_MST_VCPTAB0 168
- DPRX_MST_VCPTAB1 169
- DPRX_MST_VCPTAB3 170
- DPRX_MST_VCPTAB2 170
- DPRX_MST_VCPTAB4 171
- DPRX_MST_VCPTAB5 171
- DPRX_MST_VCPTAB6 172
- Sink AUX Controller Interface 173
- DPRX_AUX_STATUS 174
- DPRX_AUX_COMMAND 175
- DPRX_AUX_BYTE0 175
- DPRX_AUX_BYTE1 176
- DPRX_AUX_BYTE2 176
- DPRX_AUX_BYTE3 176
- DPRX_AUX_BYTE4 177
- DPRX_AUX_BYTE5 177
- DPRX_AUX_BYTE6 177
- DPRX_AUX_BYTE7 178
- DPRX_AUX_BYTE8 178
- DPRX_AUX_BYTE9 178
- DPRX_AUX_BYTE10 179
- DPRX_AUX_BYTE11 179
- DPRX_AUX_BYTE12 180
- DPRX_AUX_BYTE13 180
- DPRX_AUX_BYTE14 180
- DPRX_AUX_BYTE15 181
- DPRX_AUX_BYTE16 181
- DPRX_AUX_BYTE17 181
- DPRX_AUX_BYTE18 182
- DPRX_AUX_I2C0 182
- DPRX_AUX_I2C1 182
- DPRX_AUX_RESET 183
- DPRX_AUX_HPD 183
- Sink-Supported DPCD Locations 184
- Location Name Address Without 185
- Controller 185
- With Controller 185
- 0×200D — Yes 190
- 0×200E — Yes 190
- 0×200F — Yes 190
- Additional Information 191
- Date Version Changes 192
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