W83977EF Datasheet, PDF (129/150 Pages) Winbond – WINBOND I/O

W83977EF
11.3.2 UART/Parallel Port
PARAMETER
Delay from Stop to Set Interrupt
SYMBOL
TSINT
TEST
CONDITIONS
MIN.
9/16
Delay from IOR# Reset Interrupt
TRINT 100 pf Loading
Delay from Initial IRQ Reset to
TIRS
1/16
Transmit Start
Delay from IOW# to Reset interrupt
THR
100 pf Loading
Delay from Initial IOW# to interrupt
TSI
9/16
Delay from Stop to Set Interrupt
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
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
11.3.3 Parallel Port Mode Parameters
PARAMETER
SYM.
PD0-7, INDEX#, STROBE#, AUTOFD# Delay from t1
IOW#
IRQ Delay from ACK#, nFAULT
t2
IRQ Delay from IOW#
t3
IRQ Active Low in ECP and EPP Modes
t4
ERROR# Active to IRQ Active
t5
MIN.
200
TYP. MAX.
100
60
105
300
105
UNIT
nS
nS
nS
nS
nS
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Publication Release Date: April 2003
Revision 1.1