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PC87322VF Datasheet(PDF) 69 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87322VF
Description  Floppy Disk Controller with Dual UARTs, Enhanced Parallel Port, and IDE Interface
PDF  84 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87322VF Datasheet(HTML) 69 Page - National Semiconductor (TI)

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90 Device Description (Continued)
926 Receiver Timing
Symbol
Parameter
Conditions
Min
Max
Units
tRAI
Delay from Active Edge of RD to Reset IRQ
78
ns
tRINT
Delay from Inactive Edge of RD (RD LSR) to Reset IRQ
55
ns
tSCD
Delay from RCLK to Sample Time
(Note 1)
41
ns
tSINT
Delay from Stop Bit to Set Interrupt
2
BAUDOUT
Cycles
Note 1
This is an internal timing and is therefore not tested
TLC11870 – 34
FIGURE 9-6a Receiver Timing
TLC11870 – 35
Note 2
If SCR0 e 1 then tSINT e 3 RCLKs For a Timeout interrupt tSINT e 8 RCLKs
FIGURE 9-6b PC87322VF FIFO Mode Receiver Timing
69



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