TMS320F datasheet(335/389 Pages) TI

335 / 389 page

Submitting ROM Codes to TI

B-3

Submitting ROM Codes to TI

The TMS320 ROM code may be submitted in one of the following forms:

- Attachment to e–mail

- 3-1/2-in floppy: COFF format from macro-assembler/linker

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

involve 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

procedures, leadtimes, and cost associated with the ROM-protect feature.

TMS320F Datasheet(PDF) 335 Page - Texas Instruments