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
