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FDC37M607 Datasheet(PDF) 155 Page - SMSC Corporation |
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FDC37M607 Datasheet(HTML) 155 Page - SMSC Corporation |
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155 / 182 page  155 ISA READ TIMING NAME DESCRIPTION MIN TYP MAX UNITS t1 SA[x], nCS and AEN valid to nIOR asserted 10 ns t2 nIOR asserted to nIOR deasserted 50 ns t3 nIOR asserted to SA[x], nCS invalid 10 ns t4 nIOR asserted to Data Valid 50 ns t5 Data Hold/float from nIOR deasserted 10 25 ns t6 nIOR deasserted 25 ns t8 nIOR asserted after nIOW deasserted 80 ns t8 nIOR/nIOR, nIOW/nIOW transfers from/to ECP FIFO 150 ns t7 Parallel Port setup to nIOR asserted 20 ns t9 nIOR asserted to PINTER deasserted 55 ns t10 nIOR deasserted to FINTER deasserted 260 ns t11 nIOR deasserted to PCOBF deasserted (Notes 3,5) 80 ns t12 nIOR deasserted to AUXOBF1 deasserted (Notes 4,5) 80 ns t13 nIOW deasserted to AEN invalid 10 ns Note 1: FINTR refers to the IRQ used by the floppy disk. Note 2: PINTR refers to the IRQ used by the parallel port. Note 3: PCOBF is used for the Keyboard IRQ. Note 4: AUXOBF1 is used for the Mouse IRQ. Note 5: Applies only if deassertion is performed in hardware. |
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