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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM3703CUS датащи(PDF) 224 Page - Texas Instruments |
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AM3703CUS датащи(HTML) 224 Page - Texas Instruments |
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224 / 280 page  mcspi_cs(IN) mcspi_clk(IN) mcspi_clk(IN) mcspi_somi(OUT) mcspi_cs(IN) mcspi_clk(IN) mcspi_clk(IN) mcspi_somi(OUT) Bit n–1 Bit n–2 Bit n–3 Bit n–4 Bit 0 Bit n–1 Bit n–2 Bit n–3 Bit 1 Bit 0 PHA=0 EPOL=1 POL=0 POL=1 POL=0 POL=1 PHA=1 EPOL=1 SS6 SS1 SS0 SS1 SS0 SS1 SS0 SS1 SS0 SS6 SS6 SS4 SS5 SS7 SS4 SS1 SS1 SS1 SS1 SS6 SS6 SS6 SS5 SWPS038-070 AM3715, AM3703 SPRS616F – JUNE 2010 – REVISED AUGUST 2011 www.ti.com Table 6-76. McSPI Switching Characteristics —Slave Mode(1) (3) (4) NO. PARAMETER OPP100 OPP50 UNIT MIN MAX MIN MAX SS6 td(CLKAE-SOMIV) Delay time, mcspix_clk active edge to mcspix_somi 1.8 15.9 3.2 31.7 ns shifted SS7 td(CS0AE-SOMIV) Delay time, mcspix_cs0 active edge to Modes 0 15.9 31.7 ns mcspix_somi shifted and 2(2) (1) In mcspix, x is equal to 1, 2, 3, or 4. (2) The polarity of mcspix_clk and the active edge (rising or falling) on which mcspix_simo is driven and mcspix_somi is latched is all software configurable: – mcspix_clk(1) phase programmable with the bit PHA of MCSPI_CH(i)CONF register: PHA = 0 (Modes 0 and 2) For more information, see the McSPI environment chapter, Data Format Configurations section of the AM/DM37x Multimedia Device Technical Reference Manual (literature number SPRUGN4) for modes and phase correspondence description. (3) This timing applies to all configurations regardless of mcspix_clk polarity and which clock edges are used to drive output data and capture input data. (4) See Section 4.3.4, Processor Clocks. (1) The active clock edge selection of mcspi_clk (rising or falling) on which mcspi_simo is driven and mcspi_somi data is latched is software configurable with the bit MCSPI_CH(i)CONF[1] = POL and the bit MCSPI_CH(i)CONF[0] = PHA. (2) The polarity of mcspi_cs is software configurable with the bit MCSPI_CH(i)CONF[6] = EPOL. Figure 6-44. McSPI —Slave Mode—Transmit 224 Timing Requirements and Switching Characteristics Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM3715 AM3703 |
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