PC87310 Datasheet, PDF (47/52 Pages) National Semiconductor (TI) – PC87310 (SuperI/OTM) Dual UART with Floppy Disk Controller and Parallel Port

7 0 AC Electrical Characteristics All timings are referenced to valid 0 and valid 1 (Continued)
MODEM CONTROL
Symbol
Parameter
Conditions
Min
Max
t_MDO
Delay from WR (WR MCR)
50
to Output
t_RIM
Delay to Reset Interrupt
98
from RD (RD MSR)
t_SIM
Delay to Set Interrupt from MODEM Input
65
Units
ns
ns
ns
MODEM Control Timing
Note 1 See Write Cycle timing
Note 2 See Read Cycle timing
TL C 10591 – 26
47