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Datasheet
Asynchronous Cycle - nADS=0 | |
| t2 |
nDATACS |
|
t3A | t4 |
Read Data | valid |
| t6A |
t1A | t5 |
nRD,nWR |
|
| t5A |
Write Data | D0~D31 valid |
| PARAMETER | MIN | TYP | MAX | UNITS |
|
|
|
|
|
|
t1A | nDATACS Setup to nRD, nWR Active | 2 |
|
| ns |
|
|
|
|
|
|
t2 | nDATACS Hold After nRD, nWR Inactive (Assuming nADS Tied | 5 |
|
| ns |
| Low) |
|
|
|
|
|
|
|
|
|
|
t3A | nRD Low to Valid Data |
|
| 30 | 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 |
|
|
|
|
|
|
t6A | nRD Strobe Width | 30 |
|
| ns |
|
|
|
|
|
|
Address, AEN, nBE[3:0] | Valid Address |
|
nRD, nWR |
|
|
| t26 | t13 |
ARDY | t26A | |
|
| |
Data |
| Valid |
Valid Address
Valid Data
Figure 14.4 Asynchronous Ready
Revision 1.91 | 112 | SMSC LAN91C111 REV C |
DATASHEET