gwixp425bdt Intel Corporation, gwixp425bdt Datasheet - Page 94

• Manufacturer Part Number: gwixp425bdt
• Description: Intel Xp42x Product Line Of Network Processors And Ixc1100 Control Plane Processor
• Manufacturer: Intel Corporation

Intel
5.5.1.2
Table 41.
5.5.1.3
Table 42.
5.5.1.4
Table 43.
5.5.1.5
Table 44.
March 2005
94
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
PCI Clock Timings
PCI Clock Timings
MII Clock Timings
MII Clock Timings
UTOPIA-2 Clock Timings
UTOPIA-2 Clock Timings
Expansion Bus Clock Timings
Expansion Bus Clock Timings
Note:
1.
T
Symbol
Symbol
T
T
T
T
T
T
PERIODPCICLK
T
period100Mbit
rise/fall
T
rise/fall
T
period
period10Mbit
period
T
T
Symbol
duty
duty
Symbol
T
RISE/FALL
CLKHIGH
CLKLOW
T
rise/fall
duty
The UTOPIA interface can operate at a minimum frequency greater than 0 Hz.
Clock period for Tx and Rx UTOPIA-2
clocks
Duty cycle for Tx and Rx UTOPIA-2 clocks
Rise and fall time requirements for Tx and
Rx UTOPIA-2 clocks
Clock period for expansion-bus clock
Duty cycle for expansion-bus clock
Rise and fall time requirements for
expansion-bus clock
Clock period for Tx and Rx Ethernet
clocks
Clock period for Tx and Rx Ethernet
clocks
Duty cycle for Tx and Rx Ethernet
clocks
Rise and fall time requirements for
Tx and Rx Ethernet clocks
Clock period for PCI Clock
PCI Clock high time
PCI Clock low time
Rise and fall time
requirements for PCI Clock
Document Number: 252479, Revision: 005
Parameter
Parameter
Parameter
Parameter
Min.
30
11
11
33 MHz
Min.
Min.
40
35
Min.
Max.
40
2
Nom.
Nom.
Nom.
50
Min.
2.5
25
50
15
50
6
6
66 MHz
Max.
Max.
Max.
Max.
66
60
2.5
25
65
33
60
2
2
2
2
Units
Units
Units
Units
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
%
%
ns
%
Datasheet
Notes
Notes
Notes
Notes
1
1
1