MachXO2 Programming and Configuration Usage Guide
40
MachXO2 JEDEC File Format
All Lattice non-volatile devices support JEDEC files. Utilities are available in the Deployment Tool software for con-
verting the JEDEC file into other programming file formats, such as STAPL, SVF, or bitstream (hex or binary). The
relevant detail about the JEDEC file is provided in the table below for completeness.
Table 21. MachXO2 JEDEC File Format
JEDEC Field Syntax Description
Don’t Care My design
Characters appearing before the ^B character are don’t care. All character
sets or internal language can be used here except ^B.
Start-of-text ^B
^B (Control-B 0x02) marks the beginning of the JEDEC file. Only ASCII
characters are legal after ^B. The character * is the delimiter to mark the
ending of a JEDEC field. The CR and LF are treated as regular white
spaces and have no delimiter function in a JEDEC file.
Header My design
The first field is the header, which does not have an identifier to indicate its
start. Only ASCII characters are legal after ^B. The header is terminated by
an asterisk character *.
Field Terminator * Each field in the JEDEC file will be terminated with an asterisk.
Note (Comment) NOTE my design
The key word N marks the beginning of the comment. It can appear any-
where in the JEDEC file. Lattice’s JEDEC files add “OTE” to the N key word
to make it a more meaningful word NOTE.
Fuse Count QF3627736 The key word QF identifies the total real fuse count of the device
1
.
Default Fuse State F0 or F1
The key word F identifies the fuse state of those fuses not included in the
link field. F0 = fill them with zeros (0), F1 = fill them with ones (1). It is
defined for the purpose of reducing JEDEC file size. It has no meaning in
Lattice’s JEDEC file. Lattice recommends using compression to reduce file
size instead.
Security Setting G0 or G1 JEDEC standard defines G<0,1> to program security <0=no, 1=yes>
OTP and Security Setting G0, G1, G2, or G3
Lattice enhances the G field to cover OTP fuse programming as well.
G<0=both no, 1=only security yes, 2=only OTP yes, 3=both yes>.
To Next Page
Loading...
