Intel
®
IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller
Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
DM September 2006
306 Order Number: 252480-006US
8.8.2 Intel
®
Multiplexed-Mode Read Access
Figure 64. Expansion-Bus Read (Intel
®
Multiplexed Mode)
EX_CLK
EX_CS_N[0]
EX_ADDR[23:0]
EX_DATA[15:0]
2-5 Cycles
ALE Extended
1-4 Cycles 1-16 Cycles 1-4 Cycles 1-16 Cycles
Intel
®
Multiplexed
Read Mode
Valid Data
EX_ALE
Valid Address
EX_RD_N
T1 T2 T3 T4 T5
EX_IOWAIT_N
Valid Address
B4362-01