82801DB Datasheet, PDF (528/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4)

Electrical Characteristics
Table 17-9. PCI Interface Timing
Sym
Parameter
Min Max Units Notes Figure
t40 AD[31:0] Valid Delay
Min: 0 pF
2
11
ns Max: 50 17-3
pF
t41 AD[31:0] Setup Time to PCICLK Rising
7
ns
17-4
t42 AD[31:0] Hold Time from PCICLK Rising
0
ns
17-4
C/BE[3:0]#, FRAME#, TRDY#, IRDY#, STOP#, PAR,
t43 PERR#, PLOCK#, DEVSEL# Valid Delay from PCICLK 2
Rising
Min: 0 pF
11
ns Max: 50 17-3
pF
C/BE[3:0]#, FRAME#, TRDY#, IRDY#, STOP#, PAR,
t44 PERR#, PLOCK#, IDSEL, DEVSEL# Output Enable
2
ns
Delay from PCICLK Rising
17-7
C/BE[3:0]#, FRAME#, TRDY#, IRDY#, STOP#,
t45 PERR#, PLOCK#, DEVSEL#, GNT[A:B]# Float Delay
2
28
ns
from PCICLK Rising
17-5
C/BE[3:0]#, FRAME#, TRDY#, IRDY#, STOP#,
t46 SERR#, PERR#, DEVSEL#, Setup Time to PCICLK
7
ns
Rising
17-4
C/BE[3:0]#, FRAME#, TRDY#, IRDY#, STOP#,
t47 SERR#, PERR#, DEVSEL#, REQ[A:B]# Hold Time
from PCLKIN Rising
t48 PCIRST# Low Pulse Width
t49
GNT[A:B}#, GNT[5:0]# Valid Delay from PCICLK
Rising
0
ns
1
ms
2
12
ns
17-4
17-6
t50 REQ[A:B]#, REQ[5:0]# Setup Timer to PCICLK Rising 12
ns
528
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