Visible to Intel only — GUID: vgo1401276850881
Ixiasoft
Visible to Intel only — GUID: vgo1401276850881
Ixiasoft
6.2. Sink Interfaces
Interface |
Port Type |
Clock Domain |
Port |
Direction |
Description |
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Reset | Reset | – | reset | Input | Main asynchronous reset input.
Note: Asserting the reset input resets the SCDC register.
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Reset | – | reset_vid | Reset input for the video domain.
Note: This signal is only available when Support FRL = 0.
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Clock | Clock | – | ls_clk | Input | Link speed clock input. This port is only used when Support FRL = 0. The out_c(3), out_r(2), out_g(1), and out_b(0)TMDS/FRL encoded data inputs run at this clock frequency. ls_clk frequency = data rate per lane/20 This signal connects to the transceiver output clock only if TMDS Bit Rate is above the minimum transceiver data rate, which means no oversampling is required. This signal should connect to a PLL output clock that meets the vid_clk relationship if TMDS Bit Rate is below the minimum transceiver data rate, which means oversampling is required. In TMDS mode, data rate per lane is a function of pixel frequency and color depth ratio. Data rate per lane = Pixel frequency * 10 * Color depth ratio.
Note: The ls_clk signal is 3 bits wide for Intel® Quartus® Prime Pro Edition software versions 19.2 and earlier.
Refer to Table 40 for more details. |
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Clock | – | vid_clk | Input | Video data clock input. When Support FRL = 0, vid_clk frequency = data rate per lane/transceiver width/color depth ratio.
When Support FRL = 1,vid_clk frequency = 225 MHz.
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Clock | – | frl_clk | Input | Clock supplied to the FRL path. FRL clock frequency = (data rate * number of lane)s / (FRL characters per clock * 18). frl_clk needs to be synchronous to clk_b.
Note: The number of lanes is always 4. For FRL rates 3, 4, 5, and 6, all 4 FRL lanes are used to transmit data. For FRL rates 1 and 2, only 3 FRL lanes are used to transmit data, and the 4th lane is unused.
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Clock | – | clk_b | Input | Transceiver recovered clock from the "Blue" data channel. |
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Clock | – | clk_g | Input | Transceiver recovered clock from the "Green" data channel. |
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Clock | – | clk_r | Input | Transceiver recovered clock from the "Red" data channel. |
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Clock | – | clk_c | Input | Transceiver recovered clock from the clock data channel. |
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Clock | – | i2c_clk | Input | Avalon-MM SCDC Management Interface clock input. | ||
Video Data Port | Conduit | vid_clk | vid_data[N*48-1:0] | Output | Video 48-bit pixel data output port. For N pixels per clock, this port produces N 48-bit pixels per clock. |
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Conduit | vid_clk | vid_de[N-1:0] | Output | Video data enable output that indicates active picture region. | ||
Conduit | vid_clk | vid_hsync[N-1:0] | Output | Video horizontal sync output. | ||
Conduit | vid_clk | vid_vsync[N-1:0] | Output | Video vertical sync output. | ||
Conduit | vid_clk | vid_valid | Output | Indicates if the video data is valid. When in TMDS mode and vid_clk is running at the actual pixel clock, this signal should always be asserted. When you generate the video data at a frequency higher than the actual pixel clock, use vid_valid to qualify the validity of the video data. vid_valid and vid_clk guarantee the exact pixel clock rate. |
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Conduit | vid_clk | locked | Output | Indicates that the HDMI sink core is locked to the TMDS or FRL signals with successful lane deskew and word alignment.
Note: The locked[2:0] signal is 3 bits wide for Intel® Quartus® Prime Pro Edition software versions 19.2 and earlier, where each bit represents the locked status of a TMDS color channel.
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Conduit | vid_clk | vid_lock | Output | Asserted when the length or duration of vid_de is consistent for 3 frames. If the length or duration of vid_de is inconsistent for 2 frames, this signal deasserts. | ||
TMDS/FRL Data Port 8 | Conduit | Support FRL =1: clk_b Support FRL =0: ls_clk[0] |
in_b[transceiver width-1:0] | Input | TMDS encoded blue channel (0) input or FRL encoded channel 0. When in TMDS mode, this signal is TMDS encoded blue channel (0) output. When in FRL mode, this signal is FRL lane 0.
Note: For TMDS mode, only the 20 bits from the least significant bits are used. For FRL mode, all 40 bits are used.
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Conduit | Support FRL =1: clk_b Support FRL =0: ls_clk[0] |
in_g[transceiver width-1:0] | Input | TMDS encoded green channel (1) input or FRL encoded channel 1. When in TMDS mode, this signal is TMDS encoded green channel (1) output. When in FRL mode, this signal is FRL lane 1.
Note: For TMDS mode, only the 20 bits from the least significant bits are used. For FRL mode, all 40 bits are used.
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Conduit | Support FRL =1: clk_b Support FRL =0: ls_clk[0] |
in_r[transceiver width-1:0] | Input | TMDS encoded red channel (2) input or FRL encoded channel 2. When in TMDS mode, this signal is TMDS encoded red channel (2) output. When in FRL mode, this signal is FRL lane 2.
Note: For TMDS mode, only the 20 bits from the least significant bits are used. For FRL mode, all 40 bits are used.
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Conduit | clk_c | in_c[transceiver width-1:0] | Input | When in TMDS mode, this signal is unused. When in FRL mode, this signal is FRL lane 3. When Support FRL = 1, transceiver width is configured to 40 bits |
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Conduit | Support FRL =1: clk_b Support FRL =0: ls_clk[0] |
in_lock | Input | Indicates the HDMI RX core is ready to operate. This signal should be driven by the ready signal from the transceiver reset controller that indicates transceiver are locked.
Note: The in_lock signal is 3 bits wide for Intel® Quartus® Prime Pro Edition software versions 19.2 and earlier.
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Decoder Status Port | Conduit | Support FRL =1: clk_b Support FRL =0: ls_clk[0] |
ctrl[N*6-1:0] | Output | DVI (mode = 0) status signals that overwrite the control and synchronization character in the green and red channels. | |
Bit-Field | n=0,1.....N-1 | |||||
n*6+5 |
CTL3 |
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n*6+4 |
CTL2 |
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n*6+3 |
CTL1 |
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n*6+2 |
CTL0 |
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n*6+1 |
Reserved (0) |
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n*6 |
Reserved (0) |
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Refer to the HDMI 1.4b Specification for more information. |
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Conduit | Support FRL =1: clk_b Support FRL =0: ls_clk[0] |
mode | Output | Indicates the encoding mode of the incoming TMDS signals.
This signal is always 1 in FRL mode. |
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Link Training Control and Status Port | Conduit | i2c_clk | scdc_frl_ffe_levels[3:0] | Input | Indicates the maximum TxFFE level supported by the source at current FRL rate, These bits correspond to the SCDC sink configuration register 0x31 bits 4-7. | |
Conduit | i2c_clk | scdc_frl_rate[3:0] | Output | Indicates the FRL rate (link rate and number of lanes) that the RX core is running.
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Conduit | i2c_clk | scdc_frl_locked[3:0] | Output | Each bit indicates the corresponding FRL lane achieving lock.
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Conduit | i2c_clk | scdc_frl_ltp_req[15:0] | Input | Write to the SCDC status flags 0x41 and 0x42 to request the source to transmit specific link training pattern. Set scdc_frl_ltp_req[15:0] 0x0000 to pass the link training process.
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Conduit | i2c_clk | scdc_frl_flt_ready | Input | Set this bit to 1 when the HDMI RX core is ready for the link training process. When asserted, the FLT_Ready bit in the SCDC status flag 0x40 bit 6 is set to 1, the FRL start flag is cleared, and the FLT update flag is set for the link training process. |
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Conduit | i2c_clk | scdc_frl_src_test_config[7:0] | Input | Configure the Source Test Configuration register (SCDC register 0x35)
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SCDC Control Port |
Conduit | i2c_clk | in_5v_power | Input | Detects the presence of 5V input voltage. | |
Conduit | i2c_clk | rx_hpd_req | Output | Indicates the Hot Plug Detect (HPD) status. This signal should be driven to the HPD pin on the HDMI connector.
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Conduit | i2c_clk | TMDS_Bit_clock_Ratio | Output | Indicates if the TMDS Bit Rate is greater than 3.4 Gbps
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Avalon-MM SCDC Management Interface 9 |
Avalon-MM | i2c_clk | scdc_i2c_addr[7:0] | Input | Address. |
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Avalon-MM | i2c_clk | scdc_i2c_r | Input | Assert to indicate a read transfer. | ||
Avalon-MM | i2c_clk | scdc_i2c_rdata[7:0] | Output | Data driven from the core in response to a read transfer. | ||
Avalon-MM | i2c_clk | scdc_i2c_w | Input | Assert to indicate a write transfer. | ||
Avalon-MM | i2c_clk | scdc_i2c_wdata[7:0] | Input | Data for write transfers. | ||
Auxiliary Data Port (Applicable only when you enable Support auxiliary parameter) | Conduit | aux_clk | aux_valid | Output | Auxiliary data channel valid output to qualify the data. | |
Conduit | aux_clk | aux_data[71:0] | Output | Auxiliary data channel data output. For information about the bit-fields, refer to Figure 52. |
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Conduit | aux_clk | aux_sop | Output | Auxiliary data channel start-of-packet output to mark the beginning of a packet. | ||
Conduit | aux_clk | aux_eop | Output | Auxiliary data channel end-of-packet output to mark the end of a packet. | ||
Conduit | aux_clk | aux_error | Output | Asserted when there is auxiliary data channel CRC error. | ||
Auxiliary Status Port (Applicable only when you enable Support auxiliary parameter) 10 | Conduit | aux_clk | gcp[5:0] | Output | General Control Packet output. For information about the bit-fields, refer to Table 23. |
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Conduit | aux_clk | info_avi[122:0] (Support FRL = 1) info_avi[111:0] (Support FRL = 0) |
Output | Auxiliary Video Information InfoFrame output. For information about the bit-fields, refer to Table 24. |
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Conduit | aux_clk | info_vsi[60:0] | Output | Vendor Specific Information InfoFrame output.
For information about the bit-fields, refer to Table 26.
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Auxiliary Memory Interface (Applicable only when you enable Support auxiliary parameter) 10 | Conduit | aux_clk | aux_pkt_addr[6:0] | Output | Auxiliary packet memory buffer address output. | |
Conduit | aux_clk | aux_pkt_data[71:0] | Output | Auxiliary packet memory buffer data output. | ||
Conduit | aux_clk | aux_pkt_wr | Output | Auxiliary packet memory buffer write strobe output. | ||
Audio Port (Applicable only when you enable Support auxiliary and Support audio parameters)10 | Conduit | aux_clk | audio_CTS[19:0] | Output | Audio CTS value output. | |
Conduit | aux_clk | audio_N[19:0] | Output | Audio N value output. | ||
Conduit | aux_clk | audio_data[255:0] | Output | Audio data output. For audio channel values, refer to Table 39. |
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Conduit | aux_clk | audio_de | Output | Audio data valid output. | ||
Conduit | aux_clk | audio_metadata[164:0] | Output | Additional information related to 3D audio and MST audio. For information about the bit-fields, refer to Table 29, Table 30, and Table 31. |
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Conduit | aux_clk | audio_format[4:0] | Output | Indicates 3D audio status and the audio format detected. | ||
Bit-Field | Description | |||||
4 | The core asserts to indicate the first 8 channels of each 3D audio sample. | |||||
3:0 | For information about the bit-fields, refer to Table 27. |
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Conduit | aux_clk | audio_info_ai[47:0] | Output | Audio InfoFrame output bundle. For information about the bit-fields, refer to Table 28. |
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PHY Control Interface Port | Conduit | Support FRL:clk_b Support FRL =0:ls_clk |
os | Input | Indicates to the core that the current receiving data rate requires downsampling with a factor of 5. Assert this signal when the receiving TMDS Bit Rates is less than 1 Gbps. |
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I2C Slave Interface Port | Conduit | – | i2c_scl | Input | SCL signal from I2C bus on the HDMI connector. This signal is not available if you turn off the Include I2C parameter. |
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Conduit | – | i2c_sda | Inout | SDA signal from I2C bus on the HDMI connector. This signal is not available if you turn off the Include I2C parameter. |
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i2c_clk | edid_i2cslv_rdata[7:0] | Input | Connect this signal to the output q port of an EDID RAM. This signal returns the value from a certain address in the RAM to the internal I2C slave. This signal is available only if you turn on the Include I2C parameter and turn off the Include EDID RAM parameter. |
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Conduit | i2c_clk | edid_i2cslv_addr[31:0] | Output | Connect this signal to the output address port of an EDID RAM. This signal indicates the address that the I2C slave would access to the RAM. This signal is available only if you turn on the Include I2C slave parameter and turn off the Include EDID RAM parameter. |
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Conduit | i2c_clk | tmds_config_trans_det | Output | Indicates that there is a new write operation to the SCDC address offset 0x20 (TMDS configuration). Connect this signal to a reconfiguration controller to restart the reconfiguration flow. This signal is not available if you turn off the Include I2C parameter. |
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EDID RAM Interface Port | Conduit | i2c_clk | edid_ram_access | Input | Assert this signal when you are reading or writing to the EDID RAM. Deassert this signal when the read and write operations are complete. Asserting this signal would trigger an HPD event to the source. When you deassert this signal, the source reads the new EDID which you have just written into the RAM. This signal is not available if you turn off the Include EDID RAM parameter. |
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Avalon® -MM | i2c_clk | edid_ram_address | Input | Avalon® memory mapped interface to the EDID RAM. Connect these signals to an Avalon® memory mapped master, such as NIOS, to perform read and write operation to the EDID RAM. These signals are not available if you turn off the Include EDID RAM parameter. |
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Avalon® -MM | i2c_clk | edid_ram_read | Input | |||
Avalon® -MM | i2c_clk | edid_ram_write | Input | |||
Avalon® -MM | i2c_clk | edid_ram_waitrequest | Output | |||
Avalon® -MM | i2c_clk | edid_ram_readdata[7:0] | Output | |||
Avalon® -MM | i2c_clk | edid_ram_writedata[7:0] | Input | |||
AXI4-Stream Video (Only applicable when Enable Active Video Protocol = AXIS-VVP Full) | AXI4 Stream | axi4s_clk | axi4s_vid_out_tvalid | Output | AXI4-Stream video interface. The transfer protocol follows AXI4-Stream (full variant) as indicated in Intel FPGA Streaming Video Protocol Specification. Refer to the link in Related Information. | |
AXI4 Stream | axi4s_clk | axi4s_vid_out_tready | Input | |||
AXI4 Stream | axi4s_clk | axi4s_vid_out_tlast | Output | |||
AXI4 Stream | axi4s_clk | axi4s_vid_out_tuser | Output | |||
AXI4 Stream | axi4s_clk | axi4s_vid_out_tdata | Output | |||
AXI4-Stream Auxiliary (Only applicable when Enable Active Video Protocol = AXIS-VVP Full) | AXI4 Stream | mgmt_clk | axi4s_aux_out_tvalid | Output | AXI4-Stream auxiliary interface. Refer to section RX AXI4-Stream Auxiliary Bridge for the AXI4 streaming auxiliary transfer protocol. | |
AXI4 Stream | mgmt_clk | axi4s_ aux _out_tready | Input | |||
AXI4 Stream | mgmt_clk | axi4s_ aux _out_tlast | Output | |||
AXI4 Stream | mgmt_clk | axi4s_ aux _out_tuser | Output | |||
AXI4 Stream | mgmt_clk | axi4s_ aux _out_tdata | Output | |||
Avalon Memory-Mapped Control (Only applicable when Enable Active Video Protocol = AXIS-VVP Full) |
Avalon® - MM | mgmt_clk | av_mm_control_write | Input | Avalon memory-mapped interface to access to HDMI RX core Avalon memory-mapped demultiplexer, which provide read or write access to EDID RAM, HDMI sink registers, clocked video to AXI4-stream converter, HDCP (reserved for future use). The addressing mode for this Avalon Memory-Mapped interface is double-word addressing. | |
Avalon® - MM | mgmt_clk | av_mm_control_read | Input | |||
Avalon® - MM | mgmt_clk | av_mm_control_address | Input | |||
Avalon® - MM | mgmt_clk | av_mm_control_writedata | Input | |||
Avalon® - MM | mgmt_clk | av_mm_control_readdata | Output | |||
Avalon® - MM | mgmt_clk | av_mm_control_waitrequest | Output | |||
Avalon® - MM | mgmt_clk | av_mm_control_debugaccess | Input | |||
Avalon® - MM | mgmt_clk | av_mm_control_lock | Input | |||
Avalon® - MM | mgmt_clk | av_mm_control_byteenable | Output | |||
HDCP Port (Applicable only when you enable Support HDCP 2.3 or Support HDCP 1.4 parameters) | Reset | – | hdcp_reset | Input | Main asynchronous reset. | |
Clock | – | hdcp_i2c_clk | Input | HDCP clock for control and status registers. Typically, shares the I2C slave clock (100 MHz). |
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– | crypto_clk | Input | HDCP 2.3 clock for authentication and cryptographic layer. You can use any clock with a frequency up to 200 MHz. Not applicable for HDCP 1.4.
Note: The clock frequency determines the authentication latency.
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– | rpt_msg_clk | Input | HDCP clock for the Repeater registers in the Control and Status Register layer. Typically, shares the clock (100 MHz) that drives the repeater downstream Nios II processor. Available only when you turn on the SUPPORT_REPEATER parameter. |
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Avalon-MM | hdcp_i2c_clk | hdcp_i2c_addr[7:0] | Input | The Avalon-MM slave port that provides access to HDCP registers. The I2C slave must drive this port for HDMI application. |
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hdcp_i2c_wr | Input | |||||
hdcp_i2c_rd | Input | |||||
hdcp_i2c_wrdata[7:0] | Input | |||||
hdcp_i2c_rddata[7:0] | Output | |||||
Conduit | hdcp_i2c_clk | i2c_stop_det | Input | Assert this signal to indicate the stop condition for each I2C command. | ||
Avalon-MM | rpt_msg_clk | rpt_msg_addr[7:0] | Input | The Avalon-MM slave port that provides access to the Repeater registers, mainly for Receiver ID List and RxInfo. This interface is expected to operate at repeater downstream Nios II processor clock domain. Because of the extremely large bit portion of message, the IP transfers the message in burst mode with full handshaking mechanism. Write transfers always have a wait time of 0 cycle while read transfers have a wait time of 1 cycle. The addressing should be accessed as word addressing in the Platform Designer flow. For example, addressing of 4 in the Nios II software selects the address of 1 in the slave. |
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rpt_msg_wr | Input | |||||
rpt_msg_rd | Input | |||||
rpt_msg_wrdata[31:0] | Input | |||||
rpt_msg_rddata[31:0] | Output | |||||
Conduit (Key) | crypto_clk | kmem_wait | Input | Always keep this signal asserted until the key is ready to be read. This signal is not available if you turn on the Support HDCP Key Management parameter. |
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kmem_rdaddr[7:0] (HDCP 2.3) kmem_rdaddr[13:8] (HDCP 1.4) |
Output | Key read address bus. This signal is not available if you turn on the Support HDCP Key Management parameter. |
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kmem_q[31:0] (HDCP 2.3) kmem_q[87:32] (HDCP 1.4) |
Input | 32-bit (HDCP 2.3) or 56-bit (HDCP 1.4) data for read transfers. Read transfer always have a wait time of 1 cycle. This signal is not available if you turn on the Support HDCP Key Management parameter. |
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Avalon-MM | hdcp_i2c_clk | hdcp1_kmem_wr | Input | The Avalon-MM slave port provides write access to internal HDCP 1.4 key storage. Write transfers always have a wait time of 0. The Avalon® memory-mapped master access the addressing as word addressing in the Platform Designer flow. For example, addressing of 4 in the Avalon® memory-mapped master selects the address of 1 in the slave. These signals are only available if you turn on the Support HDCP Key Management parameter and the Support HDCP 1.4 parameter |
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hdcp1_kmem_wrdata[31:0] | Input | |||||
hdcp1_kmem_addr[6:0] | Input | |||||
Avalon-MM | hdcp_i2c_clk | hdcp2_kmem_wr | Input | The Avalon® memory-mapped slave port that provides write access to internal HDCP 2.3 key storage. Write transfers always have a wait time of 0. The Avalon® memory-mapped master access the addressing as word addressing in the Platform Designer flow. For example, addressing of 4 in the Avalon® memory-mapped master selects the address of 1 in the slave. These signals are only available if you turn on the Support HDCP Key Management parameter and the Support HDCP 2.3 parameter. |
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hdcp2_kmem_wrdata[31:0] Avalon® |
Input | |||||
hdcp2_kmem_addr[7:0] | Input | |||||
Conduit | ls_clk | hdcp1_enabled | Output | This signal is asserted by the IP if the incoming video and auxiliary data are HDCP 1.4 encrypted. | ||
hdcp2_enabled | Output | This signal is asserted by the IP if the incoming video and auxiliary data are HDCP 2.3 encrypted. | ||||
streamid_type | Output |
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hdcp_i2c_clk | hdcp1_disable | Input | Assert this signal to disable the HDCP 1.4 IP.
Note: You must reset the HDCP IP (hdcp_reset) and trigger a Hot Plug event after toggling this signal.
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hdcp2_disable | Input | Assert this signal to disable the HDCP 2.3 IP.
Note: You must reset the HDCP IP (hdcp_reset) and trigger a Hot Plug event after toggling this signal.
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