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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMS320DM643 датащи(PDF) 144 Page - Texas Instruments |
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TMS320DM643 датащи(HTML) 144 Page - Texas Instruments |
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144 / 160 page  www.ti.com 5.16.3 Management Data Input/Output (MDIO) Electrical Data/Timing 1 3 4 MDCLK MDIO (input) 1 7 MDCLK MDIO (output) TMS320DM643 Video/Imaging Fixed-Point Digital Signal Processor SPRS269A – FEBRUARY 2005 – REVISED APRIL 2005 Table 5-69. Timing Requirements for MDIO Input (see Figure 5-61) –500 –600 NO. UNIT MIN MAX 1 tc(MDCLK) Cycle time, MDCLK 400 ns 2 tw(MDCLK) Pulse duration, MDCLK high/low 180 ns 3 tsu(MDIO-MDCLKH) Setup time, MDIO data input valid before MDCLK high 10 ns 4 th(MDCLKH-MDIO) Hold time, MDIO data input valid after MDCLK high 0 ns Figure 5-61. MDIO Input Timing Table 5-70. Switching Characteristics Over Recommended Operating Conditions for MDIO Output (see Figure 5-62) –500 –600 NO. UNIT MIN MAX 7 td(MDCLKL-MDIO) Delay time, MDCLK low to MDIO data output valid –10 100 ns Figure 5-62. MDIO Output Timing 144 DM643 Peripheral Information and Electrical Specifications |
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