PRIXP420ABB Intel, PRIXP420ABB Datasheet - Page 105

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PRIXP420ABB

Manufacturer Part Number
PRIXP420ABB
Description
Manufacturer
Intel
Datasheet

Specifications of PRIXP420ABB

Core Operating Frequency
266MHz
Package Type
BGA
Pin Count
492
Mounting
Surface Mount
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Lead Free Status / Rohs Status
Compliant

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Datasheet—Intel
Figure 33.
Table 59.
June 2007
Document Number:
Motorola* Simplex
Write Mode
EX_CLK
EX_CS_N[0]
EX_ADDR[23:0]
EX_ALE
EX_IOWAIT_N
EX_RD_N
(exp_mot_rnw)
EX_WR_N
(exp_mot_ds_n)
EX_DATA[15:0]
Motorola* Simplex Write Mode
Motorola* Simplex Mode Values (Sheet 1 of 2)
®
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
252479-007US
IXP42X product line and IXC1100 control plane processors
T
T
dholdafterds
Symbol
T
dval2valds
T
ad2valcs
dspulse
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
Intel
1-4 Cycles
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
T
T1
ad2valcs
1-4 Cycles
Parameter
T
T2
dval2valds
Valid Address
1-16 Cycles
Valid Data
T3
T
dspulse
1-4 Cycles
T
dhold2afterds
T4
1-16 Cycles
Min.
1
1
1
1
T
T5
recov
Max.
16
4
4
4
B3754-001
Cycles
Cycles
Cycles
Cycles
Units
Datasheet
1, 2,
3,
4,
5,
Notes
7
7
7
105
7

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