82091AA Datasheet, PDF (171/204 Pages) Intel Corporation – ADVANCED INTEGRATED PERIPHERAL (AIP)

82091AA
Table 43 AC Specifications (V_CC^e 5V g 10% or (3 3V g 0 3V) T_amb^e0 C to 70 C) (Continued)
Symbol
Parameter
Min
Max Units
Notes
Figure
INTERRUPTS
IRQ 7 5 (Parallel Port)
t12b
IRQ 7 5 Inactive Delay from IORC
IOWC Active
70 (90) ns
ECP rev
81
fwd to FIFO
t12c
IRQ 7 5 Inactive Delay from IOWC
Inactive
70 (95) ns ECP fwd to ECR 81
t12d
IRQ 7 5 Delay from ACK
70 (90) ns
All Modes
81
t12e
IRQ 7 5 Delay from FAULT
70 (90) ns
ECP
81
IRQ6 (FDC)
t13b
IRQ6 Inactive Delay from IORC
IOWC Active
t1e^a125 ns
2
80
DMA
FDDREQ PPDREQ
t14a
xDREQ Inactive Delay from xDACK
Active
75 (100) ns
4
74
t14b
FDREQ Cycle Time (Non-Burst DMA)
6 25
ms
3
74
t14c
xDREQ Active from IORC IOWC
100
ns
74
Inactive
t14d
xDREQ Setup IORC IOWC
0
ns
3
74
t14e
xDREQ Delay from IORC IOWC
Active
75 (100) ns
5
74
t14f
FDREQ Inactive Delay from TC Active
110
ns
74
PPDREQ Inactive Delay from TC Active
80 (90)
t14g
xDREQ to xDACK Inactive
t1e
74
FDDACK PPDACK
t15a
xDACK Active Delay from xDREQ
0
ns
74
Active
t15b
xDACK Setup to IORC IOWC
18
ns
74
Active
t15c
xDACK Hold from IORC IOWC
0
ns
74
Inactive
171