Mokwon Univ

Intel PXA255 Processor

용학도리 2008. 8. 16. 16:55
For advanced devices that run the most impactful mobile applications, the Intel® PXA255 Processor is the answer. A pin-for-pin compatible, drop-in replacement for the Intel® PXA250 processor, the Intel PXA255 processor is a highly integrated, 32-bit RISC processor that combines the efficiency of Intel design with the ARM v.5TE instruction set architecture. The Intel PXA255 processor delivers industry leading processing power with built-in multimedia capabilities for high performance and hand-held functionality.
 
Features and Benefits
High performance, low power Intel XScale® technology core at 200, 300 and 400 MHz 
 
New power management for low power
 Ideal for enabling enhanced battery life and performance for high performance personal digital assistants and wireless communicators
Faster internal system bus (At 400 MHz core, internal bus runs at 200 MHz vs. 100 MHz on the Intel® PXA250 processor Improved application performance
Intel® Media Processing Technology Optimized audio and video multimedia functionality
Enhanced Memory Controller Supports low power 2.5V and 3.3V 32-bit and 16-bit memories including enhanced support for low power SDRAM as well as glue-less burst and page mode interfaces with Synchronous Intel StrataFlash® Memory
MMC/SD and PCMCIA/CF Card support Expandable storage and I/O device support
USB Client Fast host synchronization
1.84 MHz cellular baseband interface Efficient communications integration
920 Kbps Bluetooth** interface Broad inter-device communication
Variable latency I/O Add-on functionality capabilities
** Bluetooth is a trademark owned by its proprietor and used by Intel Corporation under license.
 
 
 
PXA255에서 지원하는 내용
Xscale Microarchitecture 100~400MHz Core Clock
System memory interface
           100MHz SDRAM
           4MB to 256MB of SDRAM
           16, 64, 128, 256MB DRAM
           4 Banks of SDRAM(64MB)
           SDRAM interface into self refresh
6 static memory(SRAM, Flash, VLIO)
PCMCIA/Compact Flash card interface
LCD Controller
Full Function UART
Bluetooth UART
Standard UART
MMC Controller
SSP
USB Client Controller
AC97 Controller
I2C Controller
GPIOs
Integrated JTAG support