LAN91C96I Datasheet, PDF (107/110 Pages) SMSC Corporation – NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER

Non-PCI Single-Chip Full Duplex Ethernet Controller
COLLP
COLLN
t42
t43
COL
(internal)
Parameter
t42 Collision Turn On Delay
t43 Collision Turn Off Delay
min
typ
max
units
50
ns
350
ns
Figure 12.18 – Collision Timing (AUI)
ADDRESS
POINTER
REGISTER
nIOWR
t44
nIORD
DATA
REGISTER
IO C H R DY /
nWAIT (Z)
P a r a me te r
min
typ
t44 Pointer Register Reloaded to a Word of Data
Prefetched into Data Register
2 * t20
max
units
ns
Note: If t44 is not met, IOCHRDY will be negated for the required time. This parameter can be ignored if
IOCHRDY is connected to the system.
Figure 12.19 – Memory Read Timing
SMSC DS – LAN91C96I
Page 107
DATASHEET
Rev. 11/18/2004