參數(shù)資料
型號: PXA255
廠商: Intel Corp.
英文描述: PXA255 Processor
中文描述: PXA255處理器
文件頁數(shù): 8/40頁
文件大?。?/td> 1191K
代理商: PXA255
Package Information
8
Intel PXA255 Processor
Electrical, Mechanical, and Thermal Specification
3.0
Package Information
3.1
Package Introduction
The PXA255 processor is offered in a 256-pin mBGA (refer to
Figure 2, “PXA255 processor” on
page 19
).
3.1.1
Functional Signal Definitions
3.1.1.1
PXA255 Processor Signal Pin Descriptions
Table 3, “Pin and Signal Descriptions for the PXA255 Processor” on page 9
describes the signal
definitions for the PXA255 processor.
Figure 2, “PXA255 processor” on page 19
illustrates the
physical characteristics of the PXA255 processor.
Table 5, “PXA255 processor 256-Lead
17x17mm mBGA Pinout — Ballpad No. Order” on page 20
describes the pinout for the PXA255
processor.
Figure 1. Processor Block Diagram
Intelfi XScale
Microarchitecture
Color or
Grayscale
LCD
Controller
RTC
OS Timer
PWM(2)
Int.
Controller
Clocks &
Power Man.
I
2
S
AC97
UARTs
NSSP
Slow IrDA
SSP
USB
Client
G
ASIC
Socket 0
Socket 1
3.6864
MHz
Osc
32.768
KHz
Osc
D
a
XCVR
SDRAM/
SMROM
4 banks
ROM/
Flash/
SRAM
4 banks
I
2
C
Fast IrDA
MMC
P
System Bus
Memory
Controller
Variable
Latency I/O
Control
PCMCIA
& CF
Control
Dynamic
Memory
Control
Static
Memory
Control
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