PXA250中文資料英特爾數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

Product Features

■ High Performance Processor

—Intel? XScale? Microarchitecture

—32 KB Instruction Cache

—32 KB Data Cache

—2 KB “mini” Data Cache

—Extensive Data Buffering

■ Intel? Media Processing Technology

—Enhanced 16-bit Multiply

—40-bit Accumulator

■ Flexible Clocking

—CPU clock from 66 to 300 MHz

—Flexible memory clock ratios

—Frequency change modes

■ Rich Serial Peripheral Set

—AC97 Audio Port

—I2S Audio Port

—USB Client Controller

—High Speed UART

—Second UART with flow control

—FIR and SIR infrared comm ports

■ Low Power

—Less than 500 mW Typical Internal Dissipation

—Supply Voltage may be Reduced to 0.85 V

—Low Power/Sleep Modes

■ High Performance Memory Controller

—Four Banks of SDRAM - up to 100 MHz

—Five Static Chip Selects

—Support for PCMCIA or Compact Flash

—Companion Chip interface

■ Additional Peripherals for system connectivity

—Multimedia Card Controller (MMC)

—SSP Controller

—I2C Controller

—Two Pulse Width Modulators (PWMs)

—All peripheral pins double as GPIOs.

■ Hardware debug features

■ Hardware Performance Monitoring features