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PC97307 Datasheet(PDF) 196 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC97307
Description  PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
PDF  218 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC97307 Datasheet(HTML) 196 Page - National Semiconductor (TI)

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Device Description
www.national.com
13.3.5
Transmitter Timing
TABLE 13-39. Transmitter Timing
Notes:
1. See write cycle timing in Figure 13-4.
2. See read cycle timing in Figure 13-3.
FIGURE 13-7. Transmitter Timing
a. Not tested. Guaranteed by design.
Symbol
Parameter
Min
Max
Unit
tIRTXW
IRTX Pulse Widtha
1.6
µsec
3/
16
Baud Output Cycles
tHR
Delay from WR (WR THR) to Reset IRQ
40
nsec
tIR
Delay from RD (RD IIR) to Reset IRQ (THRE)
55
nsec
tIRS
Delay from Initial IRQ Reset to Transmit Start a
8
24
Baud Output Cycles
tSI
Delay from Initial Write to IRQ a
16
24
Baud Output Cycles
tSTI
Delay from Start Bit to IRQ (THRE) a
8
Baud Output Cycles
START
DATA (5-8)
PARITY
STOP (1-2) START
tIRS
tSTI
tHR
tSI
tHR
tIR
Serial
Out
(SOUT)
Interrupt
(THRE)
WR
(WR THR)
Note 1
RD
(RD IIR)
Note 2
tIRTXW
IRTX



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