3980xpi Users Manual - Data I/O Corporation

Commands
Verify Memory Device
Main Menu / Verify Device / Verify Memory Device
To verify a memory device, follow these steps:
1. Select and socket a memory device.
2. Select Verify Device from the Main Menu. The Verify Memory Device screen
is displayed.
3. Specify the parameters you want, then press ENTER to begin verifying.
4. When the verify operation is complete, the programmer displays the
following message: OPERATION COMPLETE: Sumcheck = xxxxxxxx
The following parameters can be specified in the Verify Memory Device screen.
� Data Word Width
Sets the word width of the data to be verified. For 8-bit (or larger) devices,
the minimum word width is equal to the device word width and the
maximum is 64. For 4-bit devices, your word width choices are 4, 8, 16,
and 32. This value should match the data bus word width in the target
system for the device being programmed.
� Next Device
Designates the next device in the set. For example, if you are using 8-bit
devices and have specified a word width of 16 bits on the Verify Memory
Device screen, then two devices are required to verify each 16-bit word.
Typing 1 for the next set member directs the programmer to verify the first
device in the set with even-numbered addresses of the memory block.
Typing 2 directs the programmer to use odd-numbered addresses.
� Total Set Size
Specifies the number of virtual devices in the set for device operations. For
example, if you are verifying 16-bit wide data into two 8-bit wide devices,
your virtual device still equals one (one 16-bit virtual device). Enter any
number between 1 and 99. Automatic Set Size calculation is tried when
any of these parameters are changed: Device width, Device Block Size or
User Data Size. Total Set Size can be defined by the following equation:
TOTAL SET SIZE
=
DEVICE BLOCK SIZE
USER DATA SIZE
DATA WORD WIDTH
DEVICE WIDTH
� User Data Size
Specifies the hexadecimal size, in bytes, of the data block used to verify
the device with the source. This value is normally equal to the device size,
or to a multiple of the device size for verifying a set. If 0 is entered, it is
reset to the device size. User Data Size works with Total Set Size to
determine the total amount of bytes to verify with a set of devices.
� Next Operation Begins At
Specifies the user memory address where the next data byte will be
verified. This value is calculated from Data Word Width, Device Block Size,
Memory Begin Address, device width, and next set member parameters.
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