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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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DSP56303 Datenblatt(PDF) 278 Page - Freescale Semiconductor, Inc |
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DSP56303 Datenblatt(HTML) 278 Page - Freescale Semiconductor, Inc |
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278 / 292 page  DSP56303 User’s Manual, Rev. 2 B-34 Freescale Semiconductor Programming Reference Figure B-25. Port E Registers (PCRE, PRRE, PDRE) Application: Date: Programmer: Sheet 4 of 4 GPIO Port E (SCI) *= Reserved, Program as 0 23 65 4321 0 PCE2 PCE1 PCE0 Port E Control Register (PCRE) X:$FFFF9F Read/Write Reset = $000000 *0 *0 PCn = 1 → Port Pin configured as ESSI PCn = 0 → Port Pin configured as GPIO 23 65 4321 0 PRE2 PRE1 PRE0 Port E Direction Register (PRRE) X:$FFFF9E Read/Write Reset = $000000 *0 *0 PDCn = 1 → Port Pin is Output PDCn = 0 → Port Pin is Input 23 65 4321 0 PDE2 PDE1 PDE0 Port E GPIO Data Register (PDRE) X:$FFFF9D Read/Write Reset = $000000 *0 *0 if port pin n is GPIO input, then PDn reflects the value on port pin n if port pin n is GPIO output, then value written to PDn is reflected on port pin n *0 *0 *0 *0 *0 *0 *0 *0 *0 |
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