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DisplayPort Source Register Map and DPCD
Locations
9
2015.05.04
UG-01131
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DisplayPort source instantiations require an embedded controller (Nios II processor or another
controller) to act as the policy maker.
Table 9–1 describes the notation used to describe the registers.
Table 9-1: Notation
Shorthand Definition
RW Read/write
RO Read only
WO Write only
CRO Clear on read or write, read only
CWO Clear on read or write, write only
Source General Registers
This section describes the general registers.
DPTX_TX_CONTROL
The IRQ is asserted when AUX_IRQ_EN = 1 and in register DPTX_AUX_CONTROL flag MSG_READY = 1. IRQ is
de-asserted by setting AUX_IRQ_EN to 0 or reading from DPTX_AUX_COMMAND. IRQ is also asserted if
HPD_IRQ_EN = 1 and a new HPD event is detected (HPD_EVENT in register DPTX_TX_STATUS different from
00). IRQ is de-asserted by setting HPD_IRQ_EN to 0 or reading from DPTX_TX_STATUS.
The TX_LINK_RATE drives the respective tx_reconfig port. Setting LANE_COUNT to 00000 causes the
transmitter GXB to always send a logical zero (i.e., a constant voltage level). You can use this function to
cause a “power down” for link layer compliance testing.
Address: 0x0000
Direction: RW
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101 Innovation Drive, San Jose, CA 95134
- 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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