PRIXP422BB Intel, PRIXP422BB Datasheet - Page 18

• Manufacturer Part Number: PRIXP422BB
• Description: IC NETWRK PROCESSR 266MHZ 492BGA
• Manufacturer: Intel

Specifications of PRIXP422BB

• Processor Type: Network
• Features: XScale Core
• Speed: 266MHz
• Voltage: 1.3V
• Mounting Type: Surface Mount
• Package / Case: 492-BGA
• Core Operating Frequency: 533MHz
• Package Type: BGA
• Pin Count: 492
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 869384

Non-Core Errata
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18
same time as the AHB master operations previously described, PCI accesses directed at the IXP425
network processor may become blocked. This results in continuous retry responses on the PCI bus.
The NPEs and the Intel
direct-memory access (address 0x48000000 to 0x4FFFFFFF) or, at a minimum, they cannot access
the same address at the same time.
AHB masters must access non-overlapping regions of the PCI memory space when performing
direct memory accesses of the PCI bus.
Fixed.
66-MHz PCI Operation (SCR 543)
The IXP425 network processor does not meet all of the 66-MHz, AC-timing requirements of the
PCI Local Bus Specification, Rev. 2.2. This errata does apply to the Intel
Processor A0 stepping.
The PCI interface of the IXP425 network processor operates at a maximum PCI clock speed of
33 MHz.
None.
Fixed.
Ethernet Control Protocol Frames Transmit-Defer Status Bit Error (SCR 472)
Ethernet control protocol transmit frames, that are a size of 64 or less, result in the Transmit-Defer
status bit being set, regardless of the gap between frames.
The Transmit-Defer Status bit in the IXP42X product line and IXC1100 control plane processors is
unusable.
None.
No
Logic 0 is Driven on Both the USB D+ and D- at Reset (SCR 545)
The IXP425 network processor drives a logic 0 onto both the USB D+ and D- lines for the duration
of the assertion of the PWRON_RST_N line, after which it tri-states the lines, and lets pull-ups and
pull-downs in the system take effect. This errata does not apply to the Intel
Plane Processor A0 stepping.
This appears to the USB-host controller as a “device disconnect” or USB reset. This error could
cause a problem when a host controller/hub is transmitting while the PWRON_RST_N line asserts
(push button, power-supply monitor reset). This produces contention on either the D+ or D- line
until the host recognizes the “device disconnect” and stops driving data.
It is recommended that PWRON_RST_N be driven only by a true power-supply event — and
never a push button — to limit the occurrence of this problem.
Fixed.
Cannot Generate Watchdog Timer Reset (SCR 641)
When using the IXP425 network processor’s watchdog timer to generate a reset, unpredictable
behavior with the IXP425 network processor’s reset logic can occur. This errata does apply to the
Intel
This problem can cause the IXP425 network processor to not boot properly.
The reset capability of the IXP425 network processor watchdog timer should not be used.
Fix.
®
Intel
IXC1100 Control Plane Processor A0 stepping.
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
®
XScale™ core core cannot access the PCI bus by simultaneously using
®
IXC1100 Control Plane
®
IXC1100 Control