Figure 14.2 asynchronous cycle - using nads, Datasheet – SMSC LAN91C111 User Manual
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10/100 Non-PCI Ethernet Single Chip MAC + PHY
Datasheet
SMSC LAN91C111 REV C
111
Revision 1.91 (08-18-08)
DATASHEET
Figure 14.2 Asynchronous Cycle - Using nADS
PARAMETER
MIN
TYP
MAX
UNITS
t1
A1-A15, AEN, nBE[3:0] Valid to nRD, nWR Active
2
ns
t3
nRD Low to Valid Data
15
ns
t4
nRD High to Data Invalid
2
15
ns
t5
Data Setup to nWR Inactive
10
ns
t5A
Data Hold After nWR Inactive
5
ns
t6
nRD Strobe Width
15
ns
t8
A1-A15, AEN, nBE[3:0] Setup to nADS Rising
8
ns
t9
A1-A15, AEN, nBE[3:0] Hold after nADS Rising
5
ns
t5A
t6
t5
t1
t4
t3
t8
t9
valid
valid
valid
0ns
50ns
100ns
150ns
200ns
250
Addr,AEN,nBE[1:0]
nADS
Read Data
nRD,nWR
Write Data
Asynchronous Cycle -- Using nADS