The following terms are defined to help you understand the PROM File Formatter terminology used in this manual.
A PROM that is read one byte at a time. The other PROM type is a serial PROM, which is read one bit at a time.
In the context of the PROM File Formatter, a data stream used to configure a set of devices that are connected in series such that the DOUT pin of a device in the daisy chain is connected to the DIN pin of the next device. You can generate a daisy chain data stream by concatenating two or more bitstreams (BIT files) together using the PROM File Formatter.
In the context of the PROM File Formatter, a data stream is a collection of one or more concatenated BIT files used to implement a single user application. To implement multiple applications, concatenate data streams - one data stream per application - to form a multiple data stream PROM file that allows you to reprogram a single FPGA or a daisy chain.
A PROM file format supported by the Xilinx tools. Its maximum address is 16,777,216. This format supports PROM files of up to (8 x 16,777,216) = 134,217,728 bits.
FPGA configuration mode (XC5200 only) in which configuration data is loaded into the FPGA in parallel; one byte per clock cycle instead of one bit per clock cycle.
The area located on the right side of the PROM File Formatter window. The area presents a hierarchical view of the drives, directories, and BIT files in your system. The area is used to locate and select the BIT files that the PROM file will contain.
An ASCII hexadecimal version of the PROM data. It has unlimited data capacity.
The direction in which data is stored on your PROM. In the Up direction, the data is stored in ascending order, starting at a low address. In the Down direction, the data is stored in descending order, starting at a high address.
An Intel PROM format supported by the Xilinx tools. Its maximum address is 1,048,576. This format supports PROM files of up to (8 x 1,048,576) = 8,388,608 bits.
The area located at the top of the PROM File Formatter window that provides access to the menus. It includes the File, Edit, View, and Help menus.
A programmable read only memory.
The area located on the left side of the PROM File Formatter window. The area shows the structure of your PROM file. It is a hierarchical view of the data streams and BIT files in the PROM file.
An ASCII report file listing all the data streams and BIT files used to construct the PROM file, as well as the load direction and PROM file splitting information. The PROM File Formatter uses this file to determine the structure and properties you have specified for the PROM file.
A file consisting of one or more BIT files (bitstreams) formatted into a standard PROM file format. If generated using the PROM File Formatter, the file is formatted in one of three industry-standard formats: Intel MCS-86, Tektronics TEKHEX, or Motorola EXORmacs. The PROM file includes headers that specify the length of the bitstreams, as well as all the framing and control information necessary to configure the FPGAs. It can be used to program one or more devices.
The program used to format one or more bitstreams into an MCS-86, TEKHEX, EXORmacs, or HEX format.
A PROM whose data is read serially, one bit at a time. The other PROM type is a byte wide PROM, which is read one byte at a time.
An area located at the bottom of a window that provides information about the commands that you are about to select or that are being processed.
A Tektronix PROM format supported by Xilinx. Its maximum address is 65,536. This format supports PROM files of up to (8 x 65,536) = 524,288 bits.
The area located under the menu bar at the top of your window. It contains a series of buttons that you click to execute some of the most commonly used commands. These buttons constitute an alternative to the menu commands.
