FDC37C932APM View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
Manufacturer
FDC37C932APM
SMSC -> Microchip
FDC37C932APM Datasheet PDF : 280 Pages
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NAME
ISA READ TIMING
DESCRIPTION
MIN
t1 SA[x], nCS and AEN valid to nIOR asserted
10
t2 nIOR Asserted to nIOR Deasserted
50
t3 nIORAsserted to SA[x], nCS Invalid
10
t4 nIOR Asserted to Data Valid
t5 Data Hold/float from nIOR Deasserted
10
t6 nIOR Deasserted
25
t8 nIOR Aserted after nIOW Deasserted
80
t8 nIOR/nIOR, nIOW/nIOW Transfers from/to ECP FIFO
150
t7 Parallel Port Setup to nIOR Asserted
t9 nIOR Asserted to PINTER Deasserted
t10 nIOR Deasserted to FINTER Deasserted
t11 nIOR Deasserted to PCOBF Deasserted (Notes 4,6)
t12 nIOR Deasserted to AUXOBF1 Deasserted (Notes 5,6)
t13 nIOW Deasserted to AEN Invalid
10
Note 1: If ACCESS.bus is used at a clock rate below 24 MHz, use 100 ns.
Note 2: FINTR refers to the IRQ used by the floppy disk.
Note 3: PINTR refers to the IRQ used by the parallel port.
Note 4: PCOBF is used for the Keyboard IRQ.
Note 5: AUXOBF1 is used for the Mouse IRQ.
Note 6: Applies only if deassertion is performed in hardware.
TYP MAX UNITS
ns
ns
ns
50
ns
25
ns
ns
ns
ns
20
ns
55
ns
260
ns
80
ns
80
ns
ns
250
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