Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
A
Tpropr
Tpropf
Tf
B
Tr
Figure 13.29 – Rise, Fall And Propagation Timings
Table 13.1 – nIDE_RSTDRV Timing
NAME
Tf
DESCRIPTION (Refer to Figure 13.29)
MIN
TYP
MAX
15
UNITS
ns
nIDE_RSTDRV (B) high to low fall time. Measured form
90% to 10%
Tpropf nIDE_RSTDRV (B) high to low propagation time.
Measured from nPCI_RESET (A) to nIDE_RSTDRV (B).
20
ns
CO
CL
Output Capacitance
Load Capacitance
25
40
pF
pF
Table 13.2 – nPCIRST_OUT and nPCIRST_OUT2 Timing
NAME
Tr
DESCRIPTION (Refer to Figure 13.29)
MIN
TYP
MAX
53
UNITS
ns
nPCIRST_OUT/nPCIRST_OUT2 (B) low to high rise
time. Measured form 10% to 90%
Tpropr nPCIRST_OUT/nPCIRST_OUT2 (B) low to high
propagation time. Measured from nPCI_RESET (A) to
nPCIRST_OUT/nPCIRST_OUT2 (B).
30
ns
CO
CL
Output Capacitance
Load Capacitance
25
40
pF
pF
Table 13.3 – PS_ON Timing
DESCRIPTION (Refer to Figure 13.29)
nPS_ON (B) low to Hi-Z rise time.
NAME
Tz
MIN
TYP
MAX
50
UNITS
ns
Tf
nPS_ON (B) high to low fall time. Measured form 90%
50
ns
to 10%
Tpropz nPS_ON (B) low to Hi-Z propagation time. Measured
from nSLP_S3 (A) to nPS_ON (B).
1
1
us
us
Tpropf nPS_ON (B) high to low propagation time. Measured
from nSLP_S3 (A) to nPS_ON (B).
CO
CL
Output Capacitance
Load Capacitance
25
50
pF
pF
SMSC LPC47M182
217
Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)
DATASHEET
SMSC [ SMSC CORPORATION ]
