Common Interface Signals - Common Interface Signals - 3.0 English - PG447

H.264/H.265/JPEG Video Codec Unit 2 (VCU2) Solutions LogiCORE IP Product Guide (PG447)

Document ID
PG447
Release Date
2026-03-06
Version
3.0 English

The following table summarizes the signals which are either shared by, or not part of the dedicated AXI4 interfaces.

Table 1. VCU2 Ports
Port Name Direction Description
c0_pl_enc_rst_n Input Signal used to reset Encoder Interface
c0_pl_dec_rst_n Input Signal used to reset Decoder Interface
s_axi_lite_rst_n Input Signal used to generate vcu2_resetn_combined from LC_Register
c0_dpll_rst_n Input Signal used to reset DPLL blocks
dpll_ref_clk Input

DPLL reference clock input

Note: Recommend to connect this pin to PS-PL fabric clock. For Jitter requirement details, refer to Clocks and Reset section in Versal Prime Series Gen 2 Data Sheet: DC and AC Switching Characteristics (DS1020).
s_axi_lite_aclk Input Clock input to S_AXI_LITE interface
c0_irq_error Output Combined Interrupt output from VCU2
c0_irq_enc_pintreq Output Separate Encoder interrupt from VCU2 (Enabled when C0_ENABLE_ENCODER == True)
c0_irq_dec_pintreq Output Separate Decoder interrupt from VCU2 (Enabled when C0_ENABLE_DECODER == True)

c0_enc_sync_eol_path0

c0_enc_sync_eol_path1

Input End of Line signal - Low Latency mode encoder (Enabled when C0_ENC_ENABLE_LOW_LATENCY_MODE == True && C0_ENABLE_ENCODER == True)

c0_enc_sync_eof_path0

c0_enc_sync_eof_path1

Input End of Frame signal - Low Latency mode encoder (Enabled when C0_ENC_ENABLE_LOW_LATENCY_MODE == True && C0_ENABLE_ENCODER == True)
c0_dec_m_axi_noc_clk Output Output clock for C0_DEC_M_AXI Interface (Enabled when C0_ENABLE_DECODER == True)
c0_enc_m_axi_noc_clk Output Output clock for C0_ENC_M_AXI Interface (Enabled when C0_ENABLE_ENCODER == True)
c0_dec_mcu_m_axi_noc_clk Output Output clock for C0_DEC_MCU_M_AXI Interface (Enabled when C0_ENABLE_DECODER == True)
c0_enc_mcu_m_axi_noc_clk Output Output clock for C0_ENC_MCU_M_AXI Interface (Enabled when C0_ENABLE_ENCODER == True)
c0_raw_rst_n Input Signal used to reset VCU2
c0_s_axi_noc_clk Output clk for nsu interface
c0_enc_mcu_m_axi_noc_clk Output clk for nsu interface