參數(shù)資料
型號: ATSAM3X8CA-CU
廠商: Atmel
文件頁數(shù): 35/71頁
文件大小: 0K
描述: IC MCU 2X256KB CORTEX-M3 100-BGA
標準包裝: 260
系列: SAM3X
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 84MHz
連通性: CAN,以太網(wǎng),I²C,IrDA,LIN,MMC,SPI,SSC,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復位,DMA,I²S,POR,PWM,WDT
輸入/輸出數(shù): 63
程序存儲器容量: 512KB(512K x 8)
程序存儲器類型: 閃存
RAM 容量: 96K x 8
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x12b,D/A 2x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-TFBGA
包裝: 托盤
42
11057BS–ATARM–13-Jul-12
SAM3X/A
42
11057BS–ATARM–13-Jul-12
SAM3X/A
9.2
External Memories
The 144-pin SAM3X features one External Memory Bus to offer interface to a wide range of
external memories and to any parallel peripheral.
9.2.1
External Memory Bus
Integrates Four External Memory Controllers:
– Static Memory Controller
– NAND Flash Controller
– SLC NAND Flash ECC Controller
Up to 24-bit Address Bus (up to 16 MBytes linear per chip select)
Up to 8 chip selects, Configurable Assignment
9.2.2
Static Memory Controller
8- or 16-bit Data Bus
Multiple Access Modes supported
– Byte Write or Byte Select Lines
– Asynchronous read in Page Mode supported (4- up to 32-byte page size)
Multiple device adaptability
– Control signals programmable setup, pulse and hold time for each Memory Bank
Multiple Wait State Management
– Programmable Wait State Generation
– External Wait Request
– Programmable Data Float Time
Slow Clock mode supported
9.2.3
NAND Flash Controller
Handles automatic Read/write transfer through 4224 bytes SRAM buffer
DMA support
Supports SLC NAND Flash technology
Programmable timing on a per chip select basis
Programmable Flash Data width 8-bit or 16-bit
9.2.4
NAND Flash Error Corrected Code Controller
Integrated in the NAND Flash Controller
Single bit error correction and 2-bit Random detection.
Automatic Hamming Code Calculation while writing
– ECC value available in a register
Automatic Hamming Code Calculation while reading
– Error Report, including error flag, correctable error flag and word address being
detected erroneous
– Support 8- or 16-bit NAND Flash devices with 512-, 1024-, 2048- or 4096-byte
pages
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