參數(shù)資料
型號(hào): LH7A405
英文描述: Microcontroller
中文描述: 微控制器
文件頁(yè)數(shù): 20/53頁(yè)
文件大?。?/td> 396K
代理商: LH7A405
LH7A405
32-Bit System-on-Chip
20
Advance Data Sheet
SYSTEM DESCRIPTIONS
ARM922T Processor
The LH7A405 microcontroller features the ARM922T
cached core with an Advanced High-performance Bus
(AHB) interface. The processor is a member of the
ARM9T family of processors. For more information, see
the ARM document, ‘ARM922T Technical Reference
Manual’, available on ARM’s website at www.arm.com.
JAVA Accelerator
The LH7A405 BlueStreak Java Engine Technology
(JET) accelerates many critical processing functions for
Internet-connected devices. The BlueStreak JET pro-
vides specialized support for quickly and efficiently exe-
cuting Java applications. Sophisticated just-in-time
compilation techniques reside in hardware, allowing
Java code to be translated to optimized native code that
may be directly executed by the main processor.
The system remains under the control of the proces-
sor core, which communicates with the JET using a
designated region of address space. The BlueStreak
JET may act as a bus master to access memory and
memory-mapped resources.
System features:
Bus Interface: AMBA AHB
Host Processor: ARM9
Memory Management Unit: included for Windows
CE support (virtual memory).
Input Buffer Size: 128 bytes
Translation Cache Size: programmable up to 64K
MAX. (128 blocks of 512 bytes )
Figure 2. Application Diagram
CODEC
BATTERY
DC to DC
VOLTAGE
GENERATION
CIRCUITRY
SECURE DIGITAL/
MULTIMEDIACARD
TOUCH
SCREEN
SD/MMC
SCI
PCMCIA
COMPACT
FLASH
SDRAM
SRAM
ROM
FLASH
DMA
AC97
STN/TFT/
HR-TFT
IR
GPIO
ADC
LH7A405
PC
CARD
LH7A405-5
1
2
3
4
5
6
7
8
9
*
0
#
BMI
SMART
CARD
USB
HOST
USB
DEVICE
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