PM7326 datasheet(11/238 Pages) PMC

11 / 238 page

PM7326 S/UNI APEX

DATA SHEET

PMC-1981224

ISSUE 6

ATM/PACKET TRAFFIC MANAGER AND SWITCH

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

FIGURE 23- 4 BANK CONFIGURATION FOR 4MB OF ZBT SSRAM ............. 89

FIGURE 24- CELL STORAGE MAP................................................................. 90

FIGURE 25- 4 MB – 64K CELLS...................................................................... 91

FIGURE 26- 8 MB – 128K CELLS.................................................................... 91

FIGURE 27- 16 MB – 256K CELLS.................................................................. 92

FIGURE 28- CONTEXT LOCATION............................................................... 157

FIGURE 29- INPUT OBSERVATION CELL (IN_CELL) .................................. 191

FIGURE 30- OUTPUT CELL (OUT_CELL) .................................................... 192

FIGURE 31- BI-DIRECTIONAL CELL (IO_CELL) .......................................... 192

FIGURE 32- LAYOUT OF OUTPUT ENABLE AND BIDIRECTIONAL CELLS193

FIGURE 33- SINGLE WORD READ AND WRITE ......................................... 195

FIGURE 34- BURST READ AND WRITE....................................................... 196

FIGURE 35- CONSECUTIVE WRITE ACCESSES USING WRDONEB........ 197

FIGURE 36- READ TIMING ........................................................................... 198

FIGURE 37- WRITE TIMING.......................................................................... 198

FIGURE 38- REFRESH.................................................................................. 199

FIGURE 39- POWER UP AND INITIALIZATION SEQUENCE....................... 199

FIGURE 40- READ FOLLOWED BY WRITE TIMING.................................... 200

FIGURE 41- READ FOLLOWED BY WRITE TIMING.................................... 201

FIGURE 42- UTOPIA L2 TRANSMIT SLAVE (LOOP & WAN) ....................... 202

FIGURE 43- UTOPIA L1 RECEIVE MASTER (LOOP & WAN) ...................... 202

FIGURE 44- UTOPIA L2 RECEIVE MASTER (LOOP & WAN) ...................... 203

FIGURE 45- ANY-PHY RECEIVE MASTER (LOOP & WAN)......................... 204

FIGURE 46- UTOPIA L2 RECEIVE SLAVE (LOOP & WAN).......................... 205

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