參數(shù)資料
型號： SPEAR300-2
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 333 MHz, RISC MICROCONTROLLER, PBGA289
封裝： 15 X 15 MM, 1.70 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, LFBGA-289
文件頁數(shù)： 7/83頁
文件大?。?/td> 1027K
代理商： SPEAR300-2
SPEAr300
Architecture overview
Doc ID 16324 Rev 2
15/83
2.6
RTC oscillator
The RTC provides a 1-second resolution clock. This keeps time when the system is inactive
and can be used to wake the system up when a programmed alarm time is reached. It has a
clock trimming feature to compensate for the accuracy of the 32.768 kHz crystal and a
secured time update.
2.7
Multichannel DMA controller
Within its basic subsystem, SPEAr300 provides an DMA controller (DMAC) able to service
up to 8 independent DMA channels for sequential data transfers between single source and
destination (i.e., memory-to-memory, memory-to-peripheral, peripheral to- memory, and
peripheral-to-peripheral).
Each DMA channel can support a unidirectional transfer, with internal four-word FIFO per
channel.
2.8
Embedded memory units
●
32 Kbytes of BootROM
●
Up to 57 Kbytes of SRAM
The size of available SRAM varies according to the peripheral configuration mode See
●
57 Kbytes in modes 1 and 2
●
8 Kbytes in modes 3 to 13.
2.9
Mobile DDR/DDR2 memory controller
SPEAr300 integrates a high performances multi-channel memory controller able to support
low power Mobile DDR and DDR2 double data rate memory devices. The multi-port
architecture ensures memory is shared efficiently among different high-bandwidth client
modules.
It has 6 internal ports. One of them is reserved for register access during the controller
initialization while the other five are used to access the external memory.
It also include the physical layer (PHY) and some DLLs that allow fine tuning of all the timing
parameters to maximize the data valid windows at any frequency in the allowed range.
2.10
Serial memory interface
SPEAr300 provides a serial memory interface (SMI) to SPI-compatible off-chip memories.
These serial memories can be used for both data storage and code execution.
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相關代理商/技術參數(shù)
參數(shù)描述
SPEAR310-2 功能描述:微處理器 - MPU MPU ARM926 Cortex 8-ch DMA 32KB Rom RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
SPEAR320 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Embedded MPU with ARM926 core, optimized for factory automation and consumer applications
SPEAR320-2 功能描述:微處理器 - MPU MPU ARM926 Cortex 8-ch DMA 32KB Rom RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
SPEAR320S-2 制造商:STMicroelectronics 功能描述:SPEAR 32BIT EMBEDDED MICROPROCESSOR ARM926EJ-S (UP TO 333 M - Bulk 制造商:STMicroelectronics 功能描述:SPEAR320 Series 333 MHz 8 kB RAM ARM926 Core Embedded Microprocessor - LFBGA-289
SPEAR600-2 功能描述:微處理器 - MPU MPU ARM926 Cortex 8-ch DMA 32KB Rom RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
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