lan9500 Standard Microsystems Corp., lan9500 Datasheet - Page 28

• Manufacturer Part Number: lan9500
• Description: Lan9500/lan9500i Hi-speed Usb 2.0 To 10/100 Ethernet Controller
• Manufacturer: Standard Microsystems Corp.

Revision 1.4 (07-07-08)
3.5.3
Configuration
Output Drive
SYMBOL
Strap Pins
t
t
t
t
odad
rstia
css
csh
nRESET
Reset and Configuration Strap Timing
Figure 3.3
pins and output drive. Assertion of nRESET is not a requirement. However, if used, it must be asserted
for the minimum period specified.
nRESET input assertion time
Configuration strap pins setup to nRESET deassertion
Configuration strap pins hold after nRESET deassertion
Output drive after deassertion
illustrates the nRESET pin timing requirements and its relation to the configuration strap
Table 3.10 nRESET Reset Pin Timing Values
DESCRIPTION
Figure 3.3 nRESET Reset Pin Timing
t
rstia
t
DATASHEET
css
28
t
csh
t
odad
Hi-Speed USB 2.0 to 10/100 Ethernet Controller
MIN
200
10
30
1
TYP
SMSC LAN9500/LAN9500i
MAX
Datasheet
UNITS
uS
nS
nS
nS