NHIXP433AD Intel, NHIXP433AD Datasheet - Page 22

• Manufacturer Part Number: NHIXP433AD
• Manufacturer: Intel

Specifications of NHIXP433AD

• Core Operating Frequency: 533MHz
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

6.0
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Issue:
Affected
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Issue:
Affected
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Issue:
Affected
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Issue:
Affected
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Issue:
Intel
Specification Update
22
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IXP43X Product Line of Network Processors
Docs:Intel
Docs:Intel
Docs:Intel
Docs:Intel
Specification Changes
Updates to Pull-Down Strapping resistor value
The EX_ADDR[23:0] has a strong pull-up resistor attached internally. A 470 ohm
pull-down is required to override these pull-up resistors.
Line of Network Processors Hardware Design Guidelines and Intel® IXDP435 Multi-
Service Residential Gateway Reference Platform Schematics
Updates to Pull-Down Resistor Value on JTG_TRST_N
The JTG_TRST_N has a strong pull-up resistor attached internally. A 100 ohm
pull-down is required to override this pull-up resistor.
Line of Network Processors Hardware Design Guidelines and Intel® IXDP435 Multi-
Service Residential Gateway Reference Platform Schematics
IEEE* 1588 Hardware Assistance Support
The IEEE* 1588 standard defines a precision clock synchronization protocol for
Networked Measurement and Control Systems. It provides a kind of correction
mechanism by implementing several message exchange timing information to
synchronize individual clocks of the multiple systems. The Intel
of Network Processors provides hardware assist block to achieve this purpose. The
hardware assist block is called “Time Synchronization Hardware Assist” (TSYNC). Refer
to the Enabling Time Synchronization (IEEE1588) Hardware on Intel
Processors Application Notes
The logic also supports one non-MII “auxiliary’ interface via GPIO[8:7] pins. The
GPIO[8:7] must be tied with a 10K-ohm pull-down while using the IEEE* 1588.
IXP43X Product Line of Network Processors Datasheet.
Turbo-MII Mode Support
Added new feature. The Intel
Turbo MII (TMII) mode of operation. It is the standard MII supporting over clock up to
50 Mhz (instead of 25 Mhz) to provide throughput of 200 Mbps full-duplex. For details,
see the latest version of the Intel
Datasheet.
Add Procedure to Issue EMRS OCD Command during DDR SDRAM
Initialization
The Intel
JEDEC Standard for DDR2 SDRAM Specification, when OCD calibration is not used,
EMRS OCD Default command (A9=A8=A7=1) followed by EMRS OCD Calibration Mode
Exit command (A9=A8=A7=0) must be issued with other operating parameters of
EMRS.
Add the following procedures as step 16 in Section 11.2.2.10 DDR SDRAM Initialization
of the Intel
EMRS OCD Default command (A9=A8=A7=1) followed by EMRS OCD Calibration Mode
Exit command (A9=A8=A7=0) must be issued. The ‘OCD Program’ field is mapped to
DCALADDR register bit[9:7].
1) Configure the DCALCSR register (Hex offset: CC00 F500) with bit[2:0]=’011’
2) Configure the DCALADDR register (Hex offset: CC00 F504) with bit[1:0]=’01’, and
bit[9:7]=’111’ to issue a OCD Default command
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IXP43X Product Line of Network Processors Datasheet.
IXP43X Product Line of Network Processors Datasheet
IXP43X Product Line of Network Processors Datasheet
IXP43X Product Line of Network Processors Developer’s Manual and Intel
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IXP43X Product Line does not support OCD calibration. According to the
IXP43X Product Line of Network Processors Developer’s Manual:
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IXP43X Product Line of Network Processors support
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IXP43X Product Line of Network Processors
Order Number: 316847; Revision:
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,
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Intel® IXP43X Product
Intel® IXP43X Product
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6.0 Specification Changes
IXP43X Product Line
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IXP43X Network
December 2008
005US
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