3980xpi Users Manual - Data I/O Corporation

Commands
* Program Security Fuse (Y,N)
Enables or disables the programming of the security fuse(s). To program
the security fuse(s), set this parameter to Y and set the Security Fuse Data
parameter(s) to 1. This parameter defaults to N, which disables
programming of the security fuse(s).
* Program Signature
Available on only a few devices, the program signature is a user-definable
field that allows the user to program data into the program signature array.
* Software Data Protection (Y,N)
When enabled, prevents writing to a device.
Optional Parameters
The Non-default Parameters screen, which contains the preceding
parameters and any default parameters that were changed, is displayed as the
default. The more complex All Parameters screen displays the following
additional parameters. To toggle between the two screens, press F4.
� Memory Begin Address
Specifies the beginning RAM address, in hex, of the first byte of data to be
programmed. The Memory Begin Address must be an even address if you
have selected a 16-bit device. The default address is 0.
� Device Begin Address
Specifies the first hex device address to be programmed. The default is 0.
� Device Block Size
Specifies the size in hex of device data used in device operations. At device
selection, Device Block Size is automatically set to the device size and
usually does not need to be changed. It is also set to a smaller value if the
Device Begin Address is not zero. You can change this parameter. Entering
zero sets the Device Block Size equal to the device size.
� Set Auto-increment
When enabled, directs the programmer (in serial set programming mode)
to the starting memory address of the next block in the set to be
programmed.
For example, if you have four 1K x 8 devices to program from a 4K x 8
block of data, using the auto-increment option directs the programmer to
point to the first address of the next 1K block after each device has been
programmed. For single device operations, this feature should be disabled
and the Next Device parameter should be set to 1.
Note: Items with an * (asterisk) are visible on the screen only if the
selected device supports the feature.
* Illegal Bit Check (Y,N)
Enables or disables the illegal-bit test. This test compares data in a device
against data in the programmer's RAM to determine if the device has
already-programmed locations of incorrect polarity.
For example, the programmer returns an illegal-bit error in the following
situation: data in RAM indicates a specific bit should be in an
unprogrammed state while the corresponding bit in the device is in a
programmed state. The device cannot be programmed if the programmer
detects an illegal bit. This parameter is enabled by default.
3980xpi/3980/3900/2900 User Manual 4-13