Data I/O UniSite-xpi, User Manual

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4. Commands
4-12 UniSite-xpi User Manual
• User Data Size —Specifies the hexadecimal size, in bytes, of the data
block used to load from the device to the destination. This value is
normally equal to the device size or to a multiple of the device size
for loading a set. If 0 or a value less than the device size is entered, the
User Data Size is reset to the device size for the load. User Data Size
works with Total Set Size to determine the total amount of bytes to
load from a set of devices.
• Next Operation Begins At —This read-only parameter shows where
in user memory the next data byte will be loaded. 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.
The following parameters are found on the complex, All Parameters
Program Memory Device screen:
• Memory Begin Address —Specifies the first address, in hex, where
the first byte of data is loaded from a device. If the destination is
RAM, it is a beginning RAM address. If the destination is Disk, it is a
beginning disk file address. 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 master device address
that will be loaded. The default value is 0.
• Device Block Size —Specifies the size, in hex, of device data used in
device operations. After you have selected a device, the Device Block
Size is set automatically to the device size and normally does not
need to be changed. Device Block Size is set to a smaller value if the
Device Begin Address is nonzero. This parameter can be changed if
desired. Entering a zero sets the Device Block Size equal to the device
size.
• Set Auto-increment —This option, used in serial set mode,
automatically directs UniSite-xpi to the next block in the set that is to
be loaded. For example, if you have four 1K x 8 devices to load into a
4K x 8 block of memory, using the auto-increment option directs
UniSite-xpi to point to the first memory address of the next 1K block
after each device had been loaded. 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.