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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
316 Order Number: 252480-006US
8.8.12 TI* HPI-16, Multiplexed-Mode Read Access
Figure 74. Expansion-Bus Read (TI* HPI-16 Multiplexed Mode)
EX_CLK
EX_CS_N[0]
(hcs_n)
EX_ADDR[23.0]
(hcntl)
EX_RDY_N
(hrdy)
EX_DATA[15:0]
(hdout)
Valid Data
EX_RD_N
(hr_w_n)
Valid Address
T1
T2 T3 T4 T5
EX_WR_N
(hds1_n)
3-4 Cycles 3-4 Cycles 2-16 Cycles 2-4 Cycles 1-16 Cycles
HPI-16 Multiplex
Read Mode
B4356-01