Data I/O UniSite-xpi, User Manual

Page: 156 / 413

4. Commands
4-22 UniSite-xpi User Manual
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
UniSite-xpi to verify the first device in the set with even-numbered
addresses of the memory block. Typing 2 directs UniSite-xpi to use
odd-numbered addresses.
• Total Set Size —Specifies how many virtual devices are 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). Any number between 1 and 99 can be entered.
Automatic Set Size calculation is attempted when any of the
following parameters are changed: Device width, Device Block Size
or User Data Size. The following equation defines Total Set Size:
• 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 address in user memory
where the next data byte will be verified. This value is calculated
from the Data Word Width, Device Block Size, Memory Begin
Address, device width, and next set member parameters.
Optional Parameter
Screens
There are two types of parameter-entry screens: simple and complex.
UniSite-xpi defaults to displaying the simple, Non-default Parameters
screen. If you want to view the complex, All Parameters screen,
press F4 from the Non-default Parameters screen. If you have changed
any of the default parameters, those changed parameters will also show
up on the Non-default Parameters screen.
USER DATA SIZE
DATA WORD WIDTH
DEVICE WIDTH
DEVICE BLOCK SIZE
=
0987-1
TOTAL SET SIZE