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Descriptor Set Address Alignment

Category: Datasheet/Specs
Product Number: ADSP2156x

Hi.

adsp-2156x_hwr_rev.1.1.pdf (27–11) and adsp-2159x-sc591-592-594-hrm_rev.0.6.pdf (34–11) says about Descriptor Set Address Alignment:

All descriptor set addresses and descriptors within a descriptor set must align to a 32-bit address

I think it's wrong. I can't understand how 32-bit address can align. So I suggest to change it:

All descriptor set addresses and descriptors within a descriptor set must align to a 32-bit boundary.

Best regards.

  • Hi,

    Thank you for your suggestion. As you mentioned, a 4-byte boundary has the same significance as "align to a 32-bit address" in this context.

    According to the HRM, aligning to a 32-bit address means that the addresses in the descriptor must be in multiples of 4. You can refer to Table 27-9 (Offsets for Descriptor-Array Mode Parameters and Descriptors) in the HRM.

    Regards,
    Nandini.C