220.127.116.11. JTAG Instructions
Intel® Cyclone® 10 LP devices support the BYPASS, IDCODE, and SAMPLE instructions during configuration without interrupting configuration.
- The CONFIG_IO instruction configures the I/O buffers through the JTAG port and interrupts configuration when issued after the ACTIVE_DISENGAGE instruction. This instruction allows you to perform board-level testing prior to configuring the Intel® Cyclone® 10 LP device or waiting for a configuration device to complete configuration.
- Before issuing the CONFIG_IO instruction, you must issue the ACTIVE_DISENGAGE instruction. In Intel® Cyclone® 10 LP devices, the CONFIG_IO instruction does not hold nSTATUS low until reconfiguration, so you must disengage the active configuration mode controller when active configuration is interrupted. The ACTIVE_DISENGAGE instruction places the active configuration mode controllers in an idle state before JTAG programming.
The ACTIVE_ENGAGE instruction allows you to re-engage a disengaged active configuration mode controller.
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