IXP45X INTEL [Intel Corporation], IXP45X Datasheet - Page 144
IXP45X
Manufacturer Part Number
IXP45X
Description
Product Line of Network Processors
Manufacturer
INTEL [Intel Corporation]
Datasheet
1.IXP45X.pdf
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Figure 48.
Table 80.
5.6.3
5.6.3.1
Intel
Datasheet
144
®
IXP45X and Intel
Boundary-Scan Reset Timings
Boundary-Scan Interface Timings Values
Reset Timings
The IXP45X/IXP46X network processors can be reset in any of the following three
modes:
Normally, a Cold Reset is executed each time power is initially applied to the board, a
Warm Reset is executed when it is only intended to reset the IXP45X/IXP46X network
processors, and a Soft Reset is executed by the watchdog timer.
Cold Reset
A Cold Reset condition is when the network processor is initially powered-up and has
successfully come out of the Reset. During this state all internal modules and registers
are set to the initial default state. To successfully come out of reset, two things must
occur:
Notes:
1.
2.
Symbol
• Cold Reset
• Warm Reset
• Soft Reset.
• Proper power sequence as described in
T
T
T
T
T
T
T
T
T
bsoh
bsod
bsch
bsrh
bsih
bsrs
bscl
bsis
bsr
®
IXP46X Product Line of Network Processors
Tests completed with a 40-pF load to ground on JTAG_TDO.
JTG_TCK may be stopped indefinitely in either the low or high phase.
JTG_TCK low time
JTG_TCK high time
JTG_TDI, JTG_TMS setup time to
rising edge of JTG_TCK
JTG_TDI, JTG_TMS hold time from
rising edge of JTG_TCK
JTG_TDO hold time after falling
edge of JTG_TCK
JTG_TDO clock to output from
falling edge of JTG_TCK
JTG_TRST_N reset period
JTG_TMS setup time to rising edge
of JTG_TRST_N
JTG_TMS hold time from rising
edge of JTG_TRST_N
Intel
JTG_TRST_N
Parameter
JTG_TMS
®
IXP45X and Intel
®
T
IXP46X Product Line of Network Processors—Datasheet
bsr
Conditions
T
bsrs
Section 5.7
T
bsrh
Min.
1.5
50
50
10
10
30
10
10
Document Number:
Typ.
Max.
40
Units
A9597-01
306261-004US
ns
ns
ns
ns
ns
ns
ns
ns
ns
August 2006
Notes
2
2
1
1
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