PM3350 Datasheet, PDF (38/224 Pages) PMC-Sierra, Inc – 8-Port 10 Mbit/s Switch

ELAN 8X10
DATA SHEET
PMC-970109
ISSUE 3
PM3350 ELAN 8 X10
8 PORT ETHERNET SWITCH
60 ns Single CAS EDO DRAM
MCLK
MADDR[19:0]
MRAS*
MCS[n]*
MRD*
tCKP
tRAW
ROW
tARD
tCAW
COL1
tACD
tCP
tCPL
COL2
COL3
COL4
MDATA[31:0]
D1
D2
tRDS
tRDH
D3
D4
4-Word Burst Read
MCLK
MADDR[19:0]
MRAS*
MCS[n]*
MWR[3:0]*
tCKP
tRAW
ROW
tARD
tCAW
COL1
tACD
tCP
tCPL
COL2
COL3
COL4
MDATA[31:0]
MCLK
MADDR[19:0]
MRAS*
MCS[n]*
MWR[3:0]*
MRD*
D1
D2
D3
D4
tW DS
tW DH
4-Word Burst Write
tCKP
tRAW
ROW
tARD
tCAW
COL1
tACD
tCP
tCPL
COL2
MDATA[31:0]
DRP / 12-96
D1
D2
tW DS
tW DH
tREC
1-Word Read Followed by Write
DON'T CARE
UNDEFINED
Notes:
(1) Pin definitions shown above are for single CAS DRAM. Dual CAS DRAM is supported by selecting the
MDCAS bit in the memory configuration register. In this mode, the CAS signals are driven by
MWE*[3:0] and the RAS signals are driven by MCS*[3:0].
(2) Asserting the MSLO bit in the memory configuration register extends the CAS low time to support 80
nS DRAM
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND PMC-SIERRA, INC. CUSTOMERS ONLY
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