W83977EG-AW Datasheet, PDF (120/142 Pages) Nuvotem Talema – These products are not designed for use in life support appliances

W83977EF-AW/W83977EG-AW
13.3.2 UART/Parallel Port
PARAMETER
Delay from Stop to Set Interrupt
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
SYMBOL
TEST
CONDITIONS
TSINT
TRINT 100 pf Loading
TIRS
THR
100 pf Loading
TSI
Delay from Stop to Set Interrupt
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
TSTI
TIR
TMWO
TSIM
TRIM
TIAD
TIID
N
100 pF Loading
100 pF Loading
100 pF Loading
100 pF Loading
100 pF Loading
MIN.
9/16
1/16
9/16
MAX.
1
8/16
175
16/16
1/2
250
200
250
250
25
30
2¹⁶-1
UNIT
Baud
Rate
μS
Baud
Rate
nS
Baud
Rate
Baud
Rate
nS
nS
nS
nS
nS
nS
13.3.3 Parallel Port Mode Parameters
PARAMETER
SYM.
PD0-7, INDEX#, STROBE#, AUTOFD# Delay from
IOW#
t1
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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