gwixp425bdt Intel Corporation, gwixp425bdt Datasheet - Page 112
gwixp425bdt
Manufacturer Part Number
gwixp425bdt
Description
Intel Xp42x Product Line Of Network Processors And Ixc1100 Control Plane Processor
Manufacturer
Intel Corporation
Datasheet
1.GWIXP425BDT.pdf
(134 pages)
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Intel
Table 57.
March 2005
112
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
Motorola* Simplex Mode Values
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
T
T
T
dholdafterds
Symbol
T
T
dval2valds
T
ad2valcs
T
dspulse
rdsetup
rdhold
recov
EX_ALE is not valid in simplex mode of operation.
Setting the address phase parameter (T1) will adjust the duration that the address appears to the external
device.
Setting the data setup phase parameter (T2) will adjust the duration that the data appears prior to a
data strobe (read or write) to an external device.
Setting the data strobe phase parameter (T3) will adjust the duration that the data strobe appears
(read or write) to an external device. Data will be available during this time as well.
Setting the data hold strobe phase parameter (T4) will adjust the duration that the chip selects,
address, and data (during a write) will be held.
Setting the recovery phase parameter (T5) will adjust the duration between successive accesses on
the expansion interface.
One cycle is the period of the Expansion Bus clock.
Clock to output delay for all signals will be a maximum of 15 ns for devices requiring operation in
synchronous mode.
Timing tests were performed with a 70-pF capacitor to ground.
Valid address to valid chip select
Write data valid prior to EXP_MOT_DS_N falling edge
Pulse width of the EXP_MOT_DS_N
Valid data after the rising edge of EXP_MOT_DS_N
Data valid required before the rising edge of
EXP_MOT_DS_N
Data hold required after the rising edge of
EXP_MOT_DS_N
Time required between successive accesses on the
expansion interface.
Document Number: 252479, Revision: 005
Parameter
Min.
15
1
1
1
1
0
1
Max.
16
16
4
4
4
Cycles
Cycles
Cycles
Cycles
Cycles
Units
ns
ns
Datasheet
1, 2,
3,
4,
5,
6
Notes
7
7
7
7
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