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TMS320DM643 датащи(PDF) 96 Page - Texas Instruments |
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TMS320DM643 датащи(HTML) 96 Page - Texas Instruments |
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96 / 162 page ![]() www.ti.com AECLKOUTx ACEx ABE[7:0] AEA[12:3] AED[63:0] AAOE/ASDRAS/ASOE(A) AARE/ASDCAS/ASADS/ASRE(A) AAWE/ASDWE/ASWE(A) AEA13 AEA[22:14] BE1 BE2 BE3 BE4 Bank Column D1 D2 D3 D4 11 8 9 5 5 5 4 2 11 8 9 4 4 2 1 10 3 4 WRITE APDT(B) 14 14 A. AARE/ASDCAS/ASADS/ASRE, AAWE/ASDWE/ASWE, and AAOE/ASDRAS/ASOE operate as ASDCAS, ASDWE, and ASDRAS, respectively, during SDRAM accesses. B. APDT signal is only asserted when the EDMA is in PDT mode (set the PDTD bit to 1 in the EDMA options parameter RAM). For APDT write, data is not driven (in High-Z). The PDTWL field in the PDT control register (PDTCTL) configures the latency of the APDT signal with respect to the data phase of a write transaction. The latency of the APDT signal for a write transaction can be programmed to 0, 1, 2, or 3 by setting PDTWL to 00, 01, 10, or 11, respectively. PDTWL equals 00 (zero latency) in this figure. TMS320DM643 Video/Imaging Fixed-Point Digital Signal Processor SPRS269C – FEBRUARY 2005 – REVISED JANUARY 2007 Figure 5-25. SDRAM Write Command for EMIFA DM643 Peripheral Information and Electrical Specifications 96 Submit Documentation Feedback |
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