LAN9420 Datasheet, PDF (164/171 Pages) SMSC Corporation – Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

5.7
Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
PCI I/O Timing
The following specifies the PCI I/O requirements for LAN9420/LAN9420i:
PCICLK
t_val
V_th
V_test
V_tl
PCI OUTPUTS
V_trise, V_tfall
TRI-STATE PCI
OUTPUTS
PCI INPUTS
t_on
t_off
t_su t_h
V_th
V_max
V_test
V_tl
Figure 5.3 PCI I/O Timing
Table 5.10 PCI I/O Timing Measurement Conditions
SYMBOL
V_th
V_tl
V_test
V_trise
V_tfall
V_max
Input Signal Edge Rate
VALUE
0.6*VDD33IO
0.2*VDD33IO
0.4*VDD33IO
0.285*VDD33IO
0.615*VDD33IO
0.4*VDD33IO
1
UNITS
V
V
V
V
V
V
V/ns
Note: Input test is done with 0.1*VDD33IO overdrive. V_max specifies the maximum peak-to-peak
waveform allowed for testing input timing.
Revision 1.6 (07-18-11)
164
DATASHEET
SMSC LAN9420/LAN9420i