Altera Virtual JTAG IP Core User Manual
Page 27
• In a real system, each instance of the Virtual JTAG megafunction works independently. In simulation,
multiple instances can work at the same time. For example, if you define a scan shift for Virtual JTAG
instance number 1 to happen at 3 ms and a scan shift for Virtual JTAG instance number 2 to happen at
the same time, the simulation works correctly.
If you are using the ModelSim-Altera simulator, the altera_mf.v and altera_mf.vhd libraries are provided
in precompiled form with the simulator.
The inputs and outputs of the Virtual JTAG megafunction during a typical IR scan shift operation are shown
in the figure below.
Figure 12: IR Shift Waveform
The figure below shows the inputs and outputs of the Virtual JTAG megafunction during a typical DR scan
shift operation.
Figure 13: DR Shift Waveform
Altera Corporation
Virtual JTAG Megafunction (sld_virtual_jtag)
27
Simulation Support
UG-SLDVRTL
2014.03.19
- MAX 10 JTAG (15 pages)
- MAX 10 Power (21 pages)
- Unique Chip ID (12 pages)
- Remote Update IP Core (43 pages)
- Device-Specific Power Delivery Network (28 pages)
- Device-Specific Power Delivery Network (32 pages)
- Hybrid Memory Cube Controller (69 pages)
- ALTDQ_DQS IP (117 pages)
- MAX 10 Embedded Memory (71 pages)
- MAX 10 Embedded Multipliers (37 pages)
- MAX 10 Clocking and PLL (86 pages)
- MAX 10 FPGA (26 pages)
- MAX 10 FPGA (56 pages)
- USB-Blaster II (22 pages)
- GPIO (22 pages)
- LVDS SERDES (27 pages)
- User Flash Memory (33 pages)
- ALTDQ_DQS2 (100 pages)
- Avalon Tri-State Conduit Components (18 pages)
- Cyclone V Avalon-MM (166 pages)
- Cyclone III FPGA Starter Kit (36 pages)
- Cyclone V Avalon-ST (248 pages)
- Stratix V Avalon-ST (286 pages)
- Stratix V Avalon-ST (293 pages)
- DDR3 SDRAM High-Performance Controller and ALTMEMPHY IP (10 pages)
- Arria 10 Avalon-ST (275 pages)
- Avalon Verification IP Suite (224 pages)
- Avalon Verification IP Suite (178 pages)
- FFT MegaCore Function (50 pages)
- DDR2 SDRAM High-Performance Controllers and ALTMEMPHY IP (140 pages)
- Floating-Point (157 pages)
- Integer Arithmetic IP (157 pages)
- Embedded Peripherals IP (336 pages)
- JESD204B IP (158 pages)
- Low Latency Ethernet 10G MAC (109 pages)
- LVDS SERDES Transmitter / Receiver (72 pages)
- Nios II Embedded Evaluation Kit Cyclone III Edition (3 pages)
- Nios II Embedded Evaluation Kit Cyclone III Edition (80 pages)
- IP Compiler for PCI Express (372 pages)
- Parallel Flash Loader IP (57 pages)
- Nios II C2H Compiler (138 pages)
- RAM-Based Shift Register (26 pages)
- RAM Initializer (36 pages)
- Phase-Locked Loop Reconfiguration IP Core (51 pages)
- DCFIFO (28 pages)