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Hello,
I've found an old satnav (Navman iCN 750) and got to know that it's powered by an Intel PXZ 270 processor (320 MHz). I looked for technical details in the Internet but this CPU seems to not exist. Can someone tell me a few details about this CPU (e.g. cache, performance)? Thanks!
Greetings from Germany!
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Intel PXZ 270
■ High-performance processor:
—Intel XScale® microarchitecture with
Intel® Wireless MMX™ Technology
—7 Stage pipeline
—32 KB instruction cache
—32 KB data cache
—2 KB "mini" data cache
—Extensive data buffering
■ 256 Kbytes of internal SRAM for high
speed code or data storage preserved
during low-power states
■ High-speed baseband processor interface
(Mobile Scalable Link)
■ Rich serial peripheral set:
—AC'97 audio port
—I2S audio port
—USB Client controller
—USB Host controller
—USB On-The-Go controller
—Three high-speed UARTs (two with
hardware flow control)
—FIR and SIR infrared communications
port
■ Hardware debug features — IEEE JTAG
interface with boundary scan
■ Hardware performance-monitoring
features with on-chip trace buffer
■ Real-time clock
■ Operating-system timers
■ LCD Controller
■ Universal Subscriber Identity Module
interface
■ Low power:
—Wireless Intel Speedstep® Technology
—Less than 500 mW typical internal
dissipation
—Supply voltage may be reduced to
0.85 V
—Four low-power modes
—Dynamic voltage and frequency
management
■ High-performance memory controller:
—Four banks of SDRAM: up to 104 MHz
@ 2.5V, 3.0V, and 3.3V I/O interface
—Six static chip selects
—Support for PCMCIA and Compact
Flash
—Companion chip interface
■ Flexible clocking:
—CPU clock from 104 to 624 MHz
—Flexible memory clock ratios
—Frequency changes
—Functional clock gating
■ Additional peripherals for system
connectivity:
—SD Card / MMC Controller (with SPI
mode support)
—Memory Stick card controller
—Three SSP controllers
—Two I2C controllers
—Four pulse-width modulators (PWMs)
—Keypad interface with both direct and
matrix keys support
—Most peripheral pins double as GPIOs
REGARDS
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