Editing XScale (section)

====PXA27x====
[[File:Intel PXA270, 624MHz.jpg|thumb|right|280px|Intel PXA270 with 624 MHz]]
The PXA27x family (code-named '''Bulverde''') consists of the PXA270 and PXA271-PXA272 processors. This revision is a huge update to the XScale family of processors. The PXA270 is clocked in four different speeds: 312&nbsp;MHz, 416&nbsp;MHz, 520&nbsp;MHz and 624&nbsp;MHz and is a stand-alone processor with no packaged memory. The PXA271 can be clocked to 13, 104, 208&nbsp;MHz or 416&nbsp;MHz and has 32&nbsp;MB of 16-bit stacked StrataFlash memory and 32&nbsp;MB of 16-bit SDRAM in the same package. The PXA272 can be clocked to 312&nbsp;MHz, 416&nbsp;MHz or 520&nbsp;MHz and has 64&nbsp;MB of 32-bit stacked StrataFlash memory.

Intel also added many new technologies to the PXA27x family such as:
* [[SpeedStep]]: the operating system can clock the processor down based on load to save power.
* Wireless [[MMX (instruction set)|MMX]] (code-named '''Concan'''; "iwMMXt"): 43 new [[SIMD]] instructions containing the full MMX [[instruction set]] and the integer instructions from Intel's [[Streaming SIMD Extensions|SSE]] instruction set along with some instructions unique to the XScale.  Wireless MMX provides 16 extra 64-bit [[Processor register|registers]] that can be treated as an array of two 32-bit [[Word (data type)|word]]s, four 16-bit halfwords or eight 8-bit [[byte]]s. The XScale core can then perform up to eight adds or four [[multiply–accumulate|MAC]]s in parallel in a single cycle. This capability is used to boost speed in [[data compression|decoding]] and [[data compression|encoding]] of multimedia and in playing games.
* Additional [[peripherals]], such as a USB-Host interface and a camera interface.
* Internal 256&nbsp;KB [[static random access memory|SRAM]] to reduce power consumption and latency.

The PXA27x family was released in April 2004. Along with the PXA27x family Intel released the [[Intel 2700G|2700G]] embedded graphics [[co-processor]](code-named Marathon).