Data I/O UniSite-xpi, User Manual

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6. Translation Formats
6-14 UniSite-xpi User Manual
Comment_Text tag=3 Read
This packet contains a text string which may consist of comments related
to the POF. This text may be displayed to the operator when the file is
read. The string may include multiple lines of text, separated by
appropriate new line characters.
Tag_Reserved tag=4 Skipped
Security_Bit tag=5 Used
This packet declares whether security mode should be enabled on the
target device.
Logical_Address_
and_Data_16 tag=6 Read
This packet defines a group of logical addresses in the target device and
associates logical data with these addresses. The addresses comprise a
linear region in the logical address space, bounded on the low end by the
starting address and extending upward by the address count specified in
the packet.
Electrical_Address
_and_Data tag=7 Used
This packet defines a group of electrical addresses in the target device
and associates data values with those addresses. The data field is
ordered in column-row order, beginning with the data for the least
column-row address, continuing with increasing row addresses until the
first column is filled, then incrementing the column address, etc.
Terminator tag=8 Used
This packet signals the end of the packet list in the POF. This packet must
be the Nth packet, where N is the packet count declared in the POF
header. The CRC field is a 16-bit Cyclic Redundancy Check computed on
all bytes in the file up to, but not including, the CRC value itself. If this
CRC value is zero, the CRC check should be ignored.
Symbol table tag=9 Skipped
Test Vectors tag=10 Used
This packet allows the POF to contain test vectors for post programming
testing purposes. Each vector is a character string and uses the 20
character codes for vector bits defined in JEDEC standard 3A, section 7.0.
Electrical_Address_and_
Constant_data tag=12 Skipped
Number of programmable
elements tag=14 Read
This packet defines the number of programmable elements in the target
device.