參數(shù)資料
型號(hào): LH79531
英文描述: ARM RISC CORE ASSPs ARM7TDMI
中文描述: ARM的RISC核心專用標(biāo)準(zhǔn)的ARM7TDMI
文件頁(yè)數(shù): 15/39頁(yè)
文件大?。?/td> 296K
代理商: LH79531
System-on-Chip
LH79520
Preliminary Data Sheet
8/21/02
15
SYSTEM DESCRIPTIONS
ARM720T Processor
The LH79520 microcontroller features the ARM720T
cached core with an Advanced High-Performance Bus
(AHB) interface. The ARM720T features:
32-bit ARM7TDMI RISC Core
8KB Cache
MMU (Windows CE enabled)
The processor is a member of the ARM7T family of
processors. For more information, see the ARM docu-
ment, ‘ARM720T (Rev 3) Technical Reference Manual’,
available on Sharp’s website at www.sharpsma.com.
The LH79520 MMU provides a means to map Phys-
ical Memory (PA) addresses to virtual memory
addresses. This allows physical memory, which is con-
strained by hardware to specific addresses, to be reor-
ganized at addresses identified by the user. These user
identified locations are called Virtual Addresses (VA).
When the MMU is enabled, Code and Data must be
built, loaded, and executed using Virtual Addresses
which the MMU translates to Physical Addresses. In
addition, the user may implement a memory protection
scheme by using the features of the MMU. Address
translation and memory protection services provided
by the MMU are controlled by the user. The MMU is
directly controlled through the System Control Copro-
cessor, Coprocessor 15 (CP15). The MMU is indirectly
controlled by a Translation Table (TT) and Page Tables
(PT) prepared by the user and established using a por-
tion of physical memory dedicated by the user to stor-
ing the TT and PT’s.
Figure 3. LH79520 Application Diagram Example
CODEC
TOUCH
SCREEN
CONTR.
DMA
FLASH/
SRAM/
SDRAM
IMAGER
SSP
STN/
TFT/HR-TFT
PIO
IR
PWM
UART
UART
LH79520
MEMORY
CARD
INTERFACE
FLASH
CARD
79520-6A
相關(guān)PDF資料
PDF描述
LH79533 ARM RISC CORE ASSPs ARM7TDMI
LIC01 LIGHT IGNITION CIRCUIT
LIC01-195I SINGLE BIDIRECTIONAL BREAKOVER DIODE|230V V(BO) MAX|500UA I(S)|TO-262AA
LIC01-215B-TR LIGHT IGNITION CIRCUIT
LIC01-215I SINGLE BIDIRECTIONAL BREAKOVER DIODE|255V V(BO) MAX|500UA I(S)|TO-262AA
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