W83877TF Datasheet, PDF (78/154 Pages) Winbond – I/O chip disk drive adapter

W83877TF
9.3.2 UART/Parallel Port
PARAMETER
Delay from Stop to Set Interrupt
SYMBOL
TSINT
TEST
CONDITIONS
Delay from IOR Reset Interrupt
Delay from Initial IRQ Reset to
Transmit Start
Delay from IOW to Reset interrupt
Delay from Initial IOW to interrupt
Delay from Stop to Set Interrupt
TRINT
TIRS
100 pF Loading
THR
100 pF Loading
TSI
TSTI
Delay from IOR to Reset Interrupt
Delay from IOR to Output
Set Interrupt Delay from Modem
Input
Reset Interrupt Delay from IOR
Interrupt Active Delay
Interrupt Inactive Delay
Baud Divisor
TIR
TMWO
TSIM
100 pF Loading
100 pF Loading
TRIM
TIAD
TIID
N
100 pF Loading
100 pF Loading
100 pF Loading
MIN.
9/16
1/16
9/16
MAX. UNIT
1
8/16
175
16/16
1/2
250
200
250
Baud
Rate
µS
Baud
Rate
nS
Baud
Rate
Baud
Rate
nS
nS
nS
250
nS
25
nS
30
nS
2¹⁶-1
9.3.3 Parallel Port Mode Parameters
PARAMETER
PD0-7, INDEX , STROBE, AUTOFD Delay from
IOW
IRQ Delay from ACK , nFAULT
IRQ Delay from IOW
IRQ Active Low in ECP and EPP Modes
ERROR Active to IRQ Active
SYM.
t1
MIN.
TYP. MAX.
100
t2
60
t3
105
t4
200
300
t5
105
UNIT
nS
nS
nS
nS
nS
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Publication Release Date: March 1998
Version 0.61