SPRS292A − OCTOBER 2005 − REVISED NOVEMBER 2005
SYNCHRONOUS DRAM TIMING (CONTINUED)
|
| WRITE |
|
|
|
ECLKOUT |
|
|
|
|
|
| 1 |
| 2 |
|
|
CEx |
|
|
|
|
|
| 2 |
| 4 |
| 3 |
BE[3:0] |
| BE1 | BE2 | BE3 | BE4 |
| 4 |
| 5 |
|
|
EA[21:13] |
| Bank |
|
|
|
| 4 |
| 5 |
|
|
EA[11:2] | Column |
|
|
| |
| 4 |
| 5 |
|
|
EA12 |
|
|
|
|
|
| 9 |
| 9 |
| 10 |
ED[31:0] |
| D1 | D2 | D3 | D4 |
AOE/SDRAS/SSOE† |
|
|
|
|
|
ARE/SDCAS/SSADS† | 8 |
| 8 |
|
|
|
|
|
|
| |
| 11 |
| 11 |
|
|
AWE/SDWE/SSWE† |
|
|
|
|
|
†ARE/SDCAS/SSADS, AWE/SDWE/SSWE, and AOE/SDRAS/SSOE operate as SDCAS, SDWE, and SDRAS, respectively, during SDRAM accesses.
Figure 32. SDRAM Write Command
78 | POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 |