3980xpi Users Manual - Data I/O Corporation

Commands
4. In the Manufacturer field, enter the number that is next to the item you
want to select. For example, to select KEEP CURRENT, type 1 in the
manufacturer field, then press ENTER.
The upper-right corner of the screen displays the total number of screens
(pages) and the page you are on. Press CTRL+N to go to the next page or
CTRL+P to go to the previous page.
When you select a manufacturer, you can set the device type filter to the
appropriate setting for the device you are using. Logic Only displays only
logic devices, Memory & Emicros displays memory and emicro devices,
and All displays all device types. Press SPACE to cycle through the filter
types. The list changes accordingly.
5. After you select the manufacturer, a list of devices is displayed. Find the
device you want to use, then enter the number next to that device.
If you do not see the device you are looking for, press CTRL+N to move to
the next page or press CTRL+P to return to the previous page.
6. After you enter the correct number, press ENTER. The programmer returns
to the Main Menu and the status window shows the device you selected.
Cross Programming
Cross programming allows a single generic programmable logic device (PLD)
to be configured as any one of many PLD architectures. Consequently, the
generic device can take on the function of many subset devices. The term
generic PLD is used to identify the superset device, such as a 16V8 generic
PLD, which can be configured as a 16R4, 16R8, or a 16L8.
The generic PLD and the subset devices it can support are not restricted to the
same manufacturer. For example, a 16V8 generic PLD from manufacturer A
can be programmed using a fuse pattern originally designed for a 16L8 from
manufacturer B. The cross-programming feature allows you to avoid
recompiling source code for the generic PLD if the appropriate fuse pattern is
available for a subset part.
Follow these steps to cross-program a device:
1. Select a manufacturer with an XPGM extension, then press ENTER. A list of
all devices that can be replaced by the generic PLD of the selected
manufacturer is displayed.
2. From the Part Menu for Manufacturer screen, select the appropriate device,
such as 16V8 as 16L8 if a 16L8 fuse map has been loaded and a 16V8
generic PLD is to be programmed. Then press ENTER.
3. Load the fuse map of the subset PLD into User Memory by using either a
Load From Device operation or a Download of a JEDEC file.
4. From the Main Menu, select the Program Devices screen. 16V8 as 16L8
will be displayed in the PART # field at the top of the screen.
5. Insert the 16V8 and press ENTER. The 16V8 is programmed as a 16L8.
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