PRIXP423ABD Intel, PRIXP423ABD Datasheet - Page 18

• Manufacturer Part Number: PRIXP423ABD
• Manufacturer: Intel

Specifications of PRIXP423ABD

• Core Operating Frequency: 533MHz
• 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

Figure 5.
2.1
2.1.1
Intel
Datasheet
18
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
921Kbaud
921Kbaud
Intel
Functional Units
Processors and IXC1100 Control Plane Processor Developer’s Manual.
Unless otherwise specified, the functional descriptions apply to all processors in the
IXP42X product line and IXC1100 control plane processors. Refer to
and
The following sections briefly the functional units and their interaction in the system.
For more detailed information, refer to the Intel
interfaces.
Network Processor Engines (NPEs)
The network processor engines (NPEs) are dedicated-function processors containing
hardware coprocessors integrated into the IXP42X product line and IXC1100 control
plane processors. The NPEs are used to off-load processing functions required by the
Intel XScale
These NPEs are high-performance, hardware-multi-threaded processors with additional
local-hardware-assist functionality used to off-load highly processor-intensive functions
such as MII (MAC), CRC checking/generation, AAL segmentation and re-assembly, AES,
DES, 3DES, SHA-1, and MD5. All instruction code for the NPEs are stored locally with a
dedicated instruction memory bus and dedicated data memory bus.
These NPEs support processing of the dedicated peripherals that can include:
UART
UART
• A Universal Test and Operation PHY Interface for ATM (UTOPIA) 2 interface
• Two High-Speed Serial (HSS) interfaces
• Two Media-Independent Interfaces (MII)
66.66 MHz Advanced Peripheral Bus
Figure 1 on page 15
®
Controller
Controller
Interrupt
IXP420 Network Processor Block Diagram
GPIO
MII-1
MII-0
®
processor.
Timers
Device
USB
V1.1
Intel
Test Logic
(AHB)
PMU
Unit
®
through
IXP42X product line and IXC1100 control plane processors—Datasheet
Ethernet MAC
Ethernet MAC
Ethernet
Ethernet
AHB/APB
NPE A
NPE B
Bridge
Intel XScale
266/400/533 MHz
32 KB Data Cache
32 KB Instruction Cache
2 KB Mini-Data Cache
Figure 5
Intel XScale
AHB Bridge
North/South
133.32 MHz x 32 bits South Advance High-Performance Bus
133.32 MHz x 32 bits North Advance High-Performance Bus
fi
Processor
fi
Core
for specific information on supported
North AHB
Queue Status Bus
Arbiter
South AHB
®
Arbiter
IXP42X Product Line of Network
8 KB SRAM
Controller
Manager
Queue
PCI
Document Number:
8 - 256 MB
Expansion
Controller
Controller
SDRAM
Bus
Table 3 on page 13
B1564-04
32-Bit
252479-007US
June 2007