FDC37B727-NS Standard Microsystems (SMSC), FDC37B727-NS Datasheet - Page 210

• Manufacturer Part Number: FDC37B727-NS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37B727-NS

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

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.
NAME
t10
t11
t12
t13
t1
t2
t3
t4
t5
t6
t8
t8
t7
t9
SA[x], nCS and AEN valid to nIOR asserted
nIOR asserted to nIOR deasserted
nIOR asserted to SA[x], nCS invalid
nIOR asserted to Data Valid
Data Hold/float from nIOR deasserted
nIOR deasserted
nIOR asserted after nIOW deasserted
nIOR/nIOR, nIOW/nIOW transfers from/to ECP FIFO
Parallel Port setup to nIOR asserted
nIOR asserted to PINTER deasserted
nIOR deasserted to FINTER deasserted
nIOR deasserted to PCOBF deasserted (Notes 3,5)
nIOR deasserted to AUXOBF1 deasserted (Notes 4,5)
nIOW deasserted to AEN invalid
DESCRIPTION
TABLE 83 - ISA READ TIMING
211
MIN
150
10
50
10
10
25
80
10
TYP
MAX
260
50
25
20
55
80
80
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns