Data I/O UniSite-xpi, User Manual

Page: 145 / 413

4. Commands
UniSite-xpi User Manual 4-11
Load Memory
Device
If you select a memory device and then select the Load Device command,
the Load Memory Device menu will appear.
To load user memory with data from a memory device, follow these
steps:
1. Select and socket a memory device.
2. Select Load Device from the Main Menu. The Load Memory Device
screen appears.
3. Specify the parameters you want, then press E
NTER
to begin the
loading.
4. When the load operation is complete, UniSite-xpi displays the
following message in the message bar:
OPERATION COMPLETE. Sumcheck = xxxxxxxx (8-bit)
The following parameters can be specified on the Load Memory Device
screen:
• Data Word Width —Sets the word width of data to be loaded. For
8-bit (or larger) devices, the minimum word width is equal to the
device width, and the maximum word width 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. The default value is the device word width.
• Next Device —Designates the next device (next set member) in the
set. For example, if you are using 8-bit devices and have specified a
word width of 16 bits on the Load Memory Device screen, it requires
two devices to store each 16-bit word. Typing 1 for the next set
member directs UniSite-xpi to load the first device in the set at
even-address bytes of the memory block. Typing 2 directs UniSite-xpi
to load the second device at odd address bytes of the memory block.
• Total Set Size —Specifies how many virtual devices are in the set for
device operations. For example, if you are loading 16-bit wide data
from 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 will be attempted when any of the
following parameters are changed: Device width, Data Word Width,
Device Block Size or User Data Size. Total Set Size can be defined by
the following equation:
Main
Menu Load
Device
Load
Mem.
Parameter
USER DATA SIZE
DATA WORD WIDTH
DEVICE WIDTH
DEVICE BLOCK SIZE
=
0987-1
TOTAL SET SIZE