EWIXP425BBT Intel, EWIXP425BBT Datasheet - Page 114
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EWIXP425BBT
Manufacturer Part Number
EWIXP425BBT
Description
Manufacturer
Intel
Datasheet
1.EWIXP425BBT.pdf
(130 pages)
Specifications of EWIXP425BBT
Core Operating Frequency
266MHz
Package Type
BGA
Pin Count
492
Mounting
Surface Mount
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Lead Free Status / Rohs Status
Compliant
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Table 63.
Intel
Datasheet
114
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
HPI-16 Multiplexed Read Accesses Values
Notes:
1.
2.
3.
4.
5.
6.
7.
T
T
T
T
Symbol
cs2hds1val
hds1_pulse
data_setup
add_setup
T
recov
clocks for the address phase. This setting is required to ensure that in the event of an HRDY, the
Intel
recognize the HRDY and hold the address phase for at least one clock pulse after the HRDY is de-
active.
The data setup phase parameter (T2) must be set to a minimum value of 2. This value allows three
T clocks for setup phase.
The data strobe phase parameter (T3) must be set to a minimum value of 1. This value allows two T
clocks for the data phase. This setting is required to ensure that in the event of an HRDY, the Intel
IXP42X Product Line and Intel
recognize the HRDY and hold the data setup phase for at least one clock pulse after the HRDY is de-
active.
Setting the recovery phase parameter (T5) will adjust the duration between successive accesses on
the Expansion Bus interface.
HRDY can be asserted by the DSP at any point in the access. The interface will not leave states T1 or
T3 until HRDY is de-active.
One cycle is the period of the Expansion Bus clock.
Timing tests were performed with a 70-pF capacitor to ground.
The address phase parameter (T1) must be set to a minimum value of 2. This value allows three T
®
Valid time that address is asserted on the line. The address
is asserted at the same time as chip select.
Delay from chip select being active and the HDS1 data
strobe being active.
Pulse width of the HDS1 data strobe.
Data is valid from the time from of the falling edge of
HDS1_N to when the data is read.
Time required between successive accesses on the
expansion interface.
IXP42X Product Line and Intel
Intel
®
Parameter
IXC1100 Control Plane processors has had sufficient time to
®
IXP42X product line and IXC1100 control plane processors
®
IXC1100 Control Plane processors has had sufficient time to
Document Number: 252479-006US
Min.
11
3
4
4
2
Max.
45
17
4
5
5
Cycles
Cycles
Cycles
Cycles
Cycles
Units
August 2006
Notes
1, 5,
2, 4,
3, 5,
5,
4,
6
6
®
6
5
6
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