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Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
February 2007 HDD
Document Number: 305261, Revision: 004 79
DDR-SDRAM—Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
Figure 29. Processor-DDR Interface: x16 Devices with ECC
DDR 5
Intel
®
IXP46X
Product Line
of Network
Processors
DDRI_CS_N[0]
DDRI_CKE[0]
DDRI_WE, DDRI_RAS
DDRI_CAS
DDRI_MA[13:0]
DDR 6
DDRI_CS_N[1]
DDRI_CKE[1]
DDR 3 DDR 4
DDR 1 DDR 2
DDRI_DQ[15:0]
DDRI_DQS[1:0]
DDRI_DM[1:0]
DDRI_DQ[31:16]
DDRI_DQS[3:2]
DDRI_DM[3:2]
DDRI_CB[7:0]
DDRI_DQS[4]
DDRI_DM[4]
DDRI_CK[0]
DDRI_CK_N[0]
DDRI_CK[2]
DDRI_CK_N[2]
DDRI_CK[1]
DDRI_CK_N[1]
R
s
DDRI_RCVENOUT_N
DDRI_RCVENIN_N
R
comp
GND
DDRI_RCOMP
VTT Signal Termination
VTT Signal Termination
B3987-001