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PC87311AVF Datasheet(PDF) 69 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87311AVF
Description  PC87311A/PC87312 (SuperI/OTM II/III) Floppy Disk Controller with Dual UARTs, Parallel Port, and IDE Interface
PDF  78 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87311AVF Datasheet(HTML) 69 Page - National Semiconductor (TI)

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90 Device Description (Continued)
TLF11362 – 24
Note 3
If SCR0 e 1 then tSINT e 3 RCLKs For a Timeout interrupt tSINT e 8 RCLKs
FIGURE 9-6c PC87312 Timeout Receiver Timing
927 MODEM Control Timing
Symbol
Parameter
Conditions
Min
Max
Units
tMDO
Delay from WR (WR MCR) to Output
40
ns
tRIM
Delay to Reset IRQ from RD (RD MSR)
78
ns
tSIM
Delay to Set IRQ from MODEM Input
40
ns
TLF11362 – 25
Note 1
See Write cycle timing
Figure 9-3
Note 2
See Read cycle timing
Figure 9-2
FIGURE 9-7 MODEM Control Timing
69



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