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TNETV1647GSTZWT Datasheet(PDF) 148 Page - Texas Instruments |
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TNETV1647GSTZWT Datasheet(HTML) 148 Page - Texas Instruments |
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148 / 236 page  TMS320DM6441 SPRS359E – SEPTEMBER 2006 – REVISED AUGUST 2010 www.ti.com 6.11.2.2 ATA/CF Multiword DMA Timing Table 6-40. Timings for ATA/CF Module — Multiword DMA AC Timing(1) (2) (see Figure 6-27) 1.05 V and 1.2 V NO. MODE UNIT MIN MAX 1 t0 Cycle time 0-2 (DMASTB + DMARCVR + 2)P - 0.5 ns 2 tD DIOW/DIOR active low pulse duration 0-2 (DMASTB + 1)P - 1 ns 0 150 ns DIOR data access, DIOR falling edge to DD[15:0] 3 tE 1 60 ns valid 2 50 ns DIOR data hold time, DD[15:0] valid after DIOR 4 tF 0-2 5 ns rising edge DIOW/DIOR data setup time, DD[15:0] (OUT) valid 0-2 (DMASTB)P ns before DIOW/DIOR rising edge 0 100 ns 5 tG DIOW/DIOR data setup time, DD[15:0] (IN) valid 1 30 ns before DIOW/DIOR rising edge 2 20 ns DIOW data hold time, DD[15:0] valid after DIOW 6 tH 0-2 (HWNHLD + 1)P + 1 ns rising edge 7 tI DMACK to DIOW/DIOR setup 0-2 (DMARCVR + 1)P - 1.7 ns 8 tJ DIOW/DIOR to DMACK hold 0-2 5P - 5.9 ns 9 tKR DIOR negated pulse width 0-2 (DMARCVR + 1)P - 1 ns 10 tKW DIOW negated pulse width 0-2 (DMARCVR + 1)P - 1 ns 0 120 ns 11 tLR DIOR to DMARQ delay 1 45 ns 2 35 ns 0-1 40 ns 12 tLW DIOW to DMARQ delay 2 35 ns 13 tM ATA_CSx valid to DIOW/DIOR setup 0-2 (DATRCVR)P - 1.7 ns 14 tN ATA_CSx valid after DIOW/DIOR rising edge hold 0-2 5P - 1.7 ns 0 20 ns 15 tZ DMACK to read data (DD[15:0]) released 1-2 25 ns (1) P = SYSCLK5 period, in ns, for ATA. For example, when running the DSP CPU at 405 MHz, use P = 14.8 ns. (2) DMASTB equals the value programmed in the DMASTBxP bit field in the DMASTB register. DMARCVR equals the value programmed in the DMARCVRxP bit field in the DMARCVR register. HWNHLD equals the value programmed in the HWNHLDxP bit field in the MISCCTL register. For more detailed information, see the TMS320DM644x DMSoC ATA Controller User's Guide (literature number SPRUE21). 148 Peripheral and Electrical Specifications Copyright © 2006–2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320DM6441 |
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