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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PC87591L датащи(PDF) 116 Page - National Semiconductor (TI) |
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PC87591L датащи(HTML) 116 Page - National Semiconductor (TI) |
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116 / 437 page  Embedded Controller Modules (Continued) www.national.com 116 Revision 1.07 4.5.3 GPI Port Py Input Only Port with Alternate Function The General-Purpose Input (GPI) port (Py) contains a subset of the GPIO functions. It can be used as a GPI port or as an input signal for an alternate function. Figure 35 illustrates its functionality. Px Alt Alt Alt Pull-Up PxAlt (PxWPU) (PxDIR) (PxDOUT) PxDIN Alt Figure 34. GPIO Port Px Output with Echo Schematic Diagram PIN Echo EN To MIWU PIN Data Out Register { Direction Register { Weak Pull-Up Register Data In Register Alt Device Direction Alt Device Data Input Data In Read Alternative Function Register { or Py Px { PIN Data Input Register Alt Alt Device Data Input Data Input Read Weak Pull-Up Pull-Up PyAlt Alternate Function Register Weak Pull-Up (PyWPU) Alt PyDIN Figure 35. GPI Port Py Schematic Diagram { { |
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