Legacy-Free Keyboard/Embedded Controller with SPI and LPC Docking Interface
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
LRESET# width
1
ms
29.2
LPC Timing
C LK
t1
Output D elay
t2
t3
Tri-State Outp ut
Figure 29.4 Output Timing Measurement Conditions, LPC Signals
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
t2
t3
CLK to Signal Valid Delay – Bused Signals
Float to Active Delay
2
11
ns
Active to Float Delay
28
t1
t2
CLK
Inputs Valid
Figure 29.5 Input Timing Measurement Conditions, LPC Signals
Input
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
t2
Input Set Up Time to CLK – Bused Signals
Input Hold Time from CLK
7
0
ns
PCI_CLK
LFRAME#
L1 L2
Address
Data
TAR
Sync=0110
L3
TAR
LAD[3:0]#
Figure 29.6 I/O Write
Note: L1=Start; L2=CYCTYP+DIR; L3=Sync of 0000
Revision 1.1 (01-14-03)
294
SMSC LPC47N350
DATASHEET
SMSC [ SMSC CORPORATION ]
