9.21.14 Device Status Report: Device State

The device state section contains:.

IR-Capture register value, and
The FPGA status

The IR-Capture is the value captured by the IEEE1149.1 instruction register when going through the IR-Capture state of the IEEE 1149.1 state machine. It contains information reflecting some of the states of the devices that is useful for troubleshooting.

One of the bits in the value captured is the ISC_DONE value, specified by IEEE 1532 standard. When the value is ‘1’ it means that the FPGA array/fabric is programmed and enabled. This is available for IGLOO®, ProASIC3, SmartFusion® and Fusion devices.

For example:

Device State:
IRCapture Register (HEX): 55
FPGA Array Status: Programmed and enabled

For a blank device:

Device State:
IRCapture Register (HEX): 51
FPGA Array Status: Not enabled