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Submitting ROM Codes to TI
The TMS320 ROM code may be submitted in one of the following forms:
5-1/4-in floppy: COFF format from macro-assembler/linker (preferred)
Modem (BBS): COFF format from macro-assembler/linker
EPROM (others): TMS27C64
PROM: TBP28S166, TBP28S86
When code is submitted to TI for masking, the code is reformatted to accom-
modate the TI mask-generation system. System-level verification by the cus-
tomer is therefore necessary to ensure the reformatting remains transparent
and does not affect the execution of the algorithm. The formatting changes in-
volve the removal of address-relocation information (the code address begins
at the base address of the ROM in the TMS320 device and progresses without
gaps to the last address of the ROM) and the addition of data in the reserved
locations of the ROM for device ROM test. Because these changes have been
made, a checksum comparison is not a valid means of verification.
With each masked-device order, the customer must sign a disclaimer that
states:
The units to be shipped against this order were assembled, for expe-
diency purposes, on a prototype (that is, nonproduction qualified)
manufacturing line, the reliability of which is not fully characterized.
Therefore, the anticipated inherent reliability of these prototype units
cannot be expressly defined.
and a release that states:
Any masked ROM device may be resymbolized as TI standard
product and resold as though it were an unprogrammed version of
the device, at the convenience of Texas Instruments.
The use of the ROM-protect feature does not hold for this release statement.
Additional risk and charges are involved when the ROM-protect feature is
selected. Contact the nearest TI Field Sales Office for more information on pro-
cedures, leadtimes, and cost associated with the ROM-protect feature.
Submitting ROM Codes to TI