W83977F-A Datasheet, PDF (158/182 Pages) Winbond – WINBOND I/O

W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
14.3.2 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
THR
TSI
TSTI
100 pf Loading
100 pf Loading
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
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. UNIT
1
8/16
175
16/16
1/2
250
200
250
250
25
30
216-1
Baud
Rate
μS
Baud
Rate
nS
Baud
Rate
Baud
Rate
nS
nS
nS
nS
nS
nS
14.3.3 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
UNIT
nS
t2
t3
t4
200
t5
60
nS
105
nS
300
nS
105
nS
-150