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IDE. Data lines. A0A1 A2. Buffer. A2 A3 A4. IDE-nCS0 IDE-nCS1 IDE-nIOW IDE-nIOR IDE-DMACK. nCS1 nCS2 nPWE nOE nCS-IDEDMA. IDE-DMARQ IDE-INT IDE-IORDY. nCS1-GPIO15(O/P) nCS2-GPIO78(O/P) nPWE-GPIO49(O/P) nOE- ?? nCS-IDEDMA-GPIO20(I/P).

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  1. IDE Data lines A0A1 A2 Buffer A2 A3 A4 IDE-nCS0 IDE-nCS1 IDE-nIOW IDE-nIOR IDE-DMACK nCS1 nCS2 nPWE nOE nCS-IDEDMA IDE-DMARQ IDE-INT IDE-IORDY nCS1-GPIO15(O/P) nCS2-GPIO78(O/P) nPWE-GPIO49(O/P) nOE- ?? nCS-IDEDMA-GPIO20(I/P)

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