XScale - Read more about Hitex
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XScale
- advicePLUS Key Features and Specifications
XScale - Hitex Supported Microcontrollers
XScale - More about the Architecture
Thanks to the Intel® XScale™ microarchitecture, developers of a wide range of Internet applications can optimize the needs of their applications from ultra-low power consumption to high performance processing. Now everything from handheld Internet devices to enterprise Internet infrastructure products can process rich content at all stages of the Internet.
This new high-performance, ultra-low power microarchitecture is compliant with the ARM* Version 5TE ISA instruction set (excluding the floating point instruction set). The Intel XScale microarchitecture surrounds the ARM compliant execution core with Instruction and Data Memory Management Units; Instruction, Data and Mini-Data Caches; Write, Fill, Pend and Branch Target Buffers; Power Management, Performance Monitoring, Debug and JTAG Units; Coprocessor Interface; MAC Coprocessor; and Core Memory Bus.
The Intel XScale
microarchitecture will be combined with peripherals to provide
Applications Specific Standard Products (ASSP) targeted at selected
market segments.
As an example, the microprocessor core can be integrated with peripherals
such as an
LCD controller, multi-media controllers and an external memory interface
to empower
OEMs to develop smaller, more cost-effective handheld devices with
long battery life,
with the performance to run rich multimedia applications. As another
example, the
microprocessor core could be surrounded by high-bandwidth PCI interfaces,
memory
controllers and networking microengines to provide a highly integrated,
high
performance, I/O or network processor.
The Intel XScale
microarchitecture
is designed with Intel’s state-of-the-art
0.18-micron production semiconductor
process technology. This process
technology enables the microprocessor
core to operate over a wide range of
speed and power, producing industryleading
mW/MIPS performance.
| Features | Benefits |
Intel® Superpipelined RISC Technology |
7-stage integer/8-stage memory superpipelined core achieves high speed and ultra-low power |
| Intel® Dynamic Voltage Management | Dynamic voltage and frequency scaling on-the-fly allows applications to utilize the right blend of performance and power |
| Intel® Media Processing Technology | Multiply-Accumulate Coprocessor performs two simultaneous 16-bit SIMD multiplies with 40-bit accumulation for efficient media processing |
| Power Management Unit | gives power savings via idle, sleep, and quick wake-up modes |
| 128-entry Branch Target Buffer | keeps pipeline filled with statistically correct branch choices |
| 32 KB Instruction Cache | keeps local copy of important instructions to enable high performance and low power |
| 32 KB Data Cache | keeps local copy of important data to enable high performance and low power |
| 2 KB Mini-Data Cache | avoids “thrashing” of the D-Cache for frequently changing data streams |
| 32-entry Instruction Memory Management Unit | enables logical-to-physical address translation, access permissions, I-Cache attributes |
| 32-entry Data Memory Management Unit | enables logical-to-physical address translation, access permissions, D-Cache attributes |
| 4-entry Fill and Pend Buffers | promotes Core efficiency by allowing non-blocking and “hit-under-miss” operation with Data Caches |
| Performance Monitoring Unit | furnishes two 32-bit event counters and one 32-bit cycle counter for analysis of hit rates, etc. |
| Debug Unit | uses Hardware Breakpoints and 256-entry Trace History Buffer (for flow change messages) to debug programs |
| 32-bit Coprocessor Interface | provides high performance interface between core and coprocessors |
| 64-bit Core Memory Bus with simultaneous 32-bit input path and 32-bit output path | gives up to 4.8 GBytes/sec. @ 600 MHz bandwidth for internal accesses |
| 8-entry Write Buffer | allows the Core to continue execution while data is written to memory |
For more information, visit our website at: http://developer.intel.com/design/xscale/index.htm
Please use the following links to visit our website:
XScale, emulators, debuggers, 8051, debugging, development, embedded, tool, microcontroller, microprocessor, usb, IEEE1394, Firewire, analyzer, compiler, analysis, quality, test, adapter, 166, 167, TriCore, HC12, HC08, MPC.
