DATA ADDRESS GENERATOR
\dˈe͡ɪtəɹ ɐdɹˈɛs d͡ʒˈɛnəɹˌe͡ɪtə], \dˈeɪtəɹ ɐdɹˈɛs dʒˈɛnəɹˌeɪtə], \d_ˈeɪ_t_ə_ɹ ɐ_d_ɹ_ˈɛ_s dʒ_ˈɛ_n_ə_ɹ_ˌeɪ_t_ə]\
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(DAG) The mechanism which generates temporarymemory addresses for data that is transferred between memoryand registers in a Digital Signal Processor.Certain DSP architectures incorporate more than one DAG tosimplify the programming needed to move blocks of data betweenbuffers.For instance, certain Fast Fourier Transform algorithmsrequiring bit reversing, can use the DAG for that purpose,or they can use two DAGS, one for Program Memory Data (PMD),and the other for Data Memory Data (DMD).
By Denis Howe
