IXP2400 Intel, IXP2400 Datasheet - Page 12

• Manufacturer Part Number: IXP2400
• Manufacturer: Intel

Specifications of IXP2400

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

Intel
2.2.1
2.2.2
2.2.3
12
Figure 5. Intel XScale
®
IXP2400 Network Processor
Instruction Cache
The Intel XScale core implements a 32-Kbyte, 32-way set associative instruction cache with a line
size of 32 bytes. All requests that “miss” the instruction cache generate a 32-byte read request to
external memory. A mechanism to lock critical code within the cache is also provided.
Data Cache
The Intel XScale core implements a 32-Kbyte 32-way set-associative data cache, and a 2-Kbyte
2-way set-associative mini-data cache. Each cache has a line size of 32 bytes and supports
write-through or write-back caching. The data/mini-data cache is controlled by the page attributes
defined in the Memory Management Unit (MMU) Architecture.
Debug
The Intel XScale core supports software debugging, via the JTAG Port, through two instruction
address breakpoint registers, one data-address breakpoint register, one data-address/mask
breakpoint register, and a trace buffer.
* Arm and StrongARM are registered trademarks of ARM, Ltd.
Debug
Instruction Cache
Power
Management
®
Hardware Breakpoints
Branch History Table
Idle / Drowsy / Sleep
Performance
Core Internal Block Diagram
Monitoring
32 Kbytes
32 ways
Lockable by line
JTAG
I-MMU
Branch Target
Cache
Data Cache
128 Entry
32 entry TLB
Fully associative
Lockable by entry
Max 32 Kbytes
32 ways
wr-back or
wr-through
Hit and miss
Intel
®
ARM* Version 5TE Core
Co-Processor
Single Cycle
Throughput (16*32)
16-bit SIMD
40-bit Accumulator
Data RAM
D-MMU
32 entry TLB
Fully associative
Lockable by entry
Max 28 Kbytes
Re-map of
data cache
Write Buffer
8 entries
Full coalescing
Fill Buffer
Mini-Data
Cache
4 - 8 entries
2 Kbytes
2 ways
Datasheet
A9812-01