PC87311A Datasheet, PDF (73/78 Pages) National Semiconductor (TI) – PC87311A/PC87312 (SuperI/OTM II/III) Floppy Disk Controller with Dual UARTs, Parallel Port, and IDE Interface

9 0 Device Description (Continued)
9 2 14 Parallel Port Timing
Symbol
Parameter
Conditions
Typ
Max
Units
t_PDH
t_PDS
t_PI
t_SW
Port Data Hold
Port Data Setup
Port Interrupt
Strobe Width
(Note 1)
(Note 1)
(Note 1)
500
ns
500
ns
33
ns
500
ns
Note 1 These times are system dependent and are therefore not tested
TL F 11362 – 32
FIGURE 9-14 Parallel Port Interrupt Timing (Compatible Mode)
FIGURE 9-15 Parallel Port Interrupt Timing (Extended Mode)
TL F 11362 – 33
FIGURE 9-16 Typical Parallel Port Data Exchange
TL F 11362 – 34
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