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Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
February 2007 HDD
Document Number: 305261; Revision: 004 25
General Hardware Design Considerations—Intel
®
IXP45X and Intel
®
IXP46X Product Line of
Network Processors
Figure 3. 8/16/32-Bit Device Interface: No Byte-Enable
EX_ADDR[24:0]
EX_DATA[7:0]
8-Bit Device
Byte Access
CS
OE
WR
EX_ADDR[24:0]
EX_DATA[31:0]
EX_CS_N
EX_RD_N
EX_WR_N
CS_N
OE_N
WR_N
DATA[7:0]
ADDR[24:0]
EX_ADDR[24:0]
EX_DATA[15:0]
16-Bit Device
16-Bit-Word Access
CS
OE
WR
EX_ADDR[24:0]
EX_DATA[31:0]
EX_CS_N
EX_RD_N
EX_WR_N
CS_N
OE_N
WR_N
DATA[15:0]
ADDR[24:0]
EX_ADDR[24:0]
EX_DATA[31:0]
32-Bit Device
32-Bit-Word Access
CS
OE
WR
EX_ADDR[24:0]
EX_DATA[31:0]
EX_CS_N
EX_RD_N
EX_WR_N
CS_N
OE_N
WR_N
DATA[31:0]
ADDR[24:0]
Intel
®
IXP46X
Product Line of
Network Processors
Intel
®
IXP46X
Product Line of
Network Processors
Intel
®
IXP46X
Product Line of
Network Processors
B4095-002