Device Operations - Xilinx EZTag User Manual

Introduction

Device Operations

Programming information is extracted from the JEDEC file generated
by the fitter software. The JEDEC file name defaults to
< design >.jed. If a full pathname is not provided the file of this
name is searched for along the XACT path.
Device operation options available to users are:
Program. Download the contents of the JEDEC file to the device
programming registers.
Program & Verify. Download contents of the JEDEC file to the device
programming registers. Configure the device and read back the
contents of device programming registers and compare them with
the JEDEC file. Report any differences to the user.
Program, Verify & Test. Same as Program & Verify (above) with the
addition of a Functional Test (see below).
Verify. Read back the contents of the device programming registers
and compare them with the JEDEC file.
Erase. Clear device configuration information.
Functional Test. Apply user-specified functional vectors from the
JEDEC file to the device, comparing results obtained against expected
values. Report any differences to the user.
Read Manufacturer's ID. Read the contents of the JTAG IDCODE
register. Display contents for the user.
Read User Signature. This value will have been set by the user at
programming time. It is valid only after programming. This function
reads the contents of the JTAG USERCODE register and displays the
result for the user.
Bypass. Ignore this device when addressing devices in the JTAG
boundary scan chain.
Readback. Reads back the contents of device programming registers
and creates a new JEDEC file with the results.
Checksum. Reads back the contents of device programming registers
and calculates a checksum for comparison against the expected
value.
EZTag User Guide 1-7