參數(shù)資料
型號: ATSAM3SD8CA-CU
廠商: Atmel
文件頁數(shù): 25/57頁
文件大?。?/td> 0K
描述: IC MCU 2X256KB CORTEX-M3 100-QFN
標準包裝: 260
系列: SAM3S
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 64MHz
連通性: EBI/EMI,I²C,IrDA,MMC,SPI,SSC,UART/USART,USB
外圍設備: 欠壓檢測/復位,DMA,I²S,POR,PWM,WDT
輸入/輸出數(shù): 79
程序存儲器容量: 512KB(512K x 8)
程序存儲器類型: 閃存
RAM 容量: 64K x 8
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 1.95 V
數(shù)據(jù)轉換器: A/D 16x12b,D/A 2x12b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: *
包裝: *
31
11090BS–ATARM–22-Oct-13
SAM3S8/SD8 Summary
9.2
External Memories
The SAM3S8/SD8 features one External Bus Interface to provide an interface to a wide range of
external memories and to any parallel peripheral.
9.2.1
Static Memory Controller
16-Mbyte Address Space per Chip Select
8- bit Data Bus
Word, Halfword, Byte Transfers
Programmable Setup, Pulse And Hold Time for Read Signals per Chip Select
Programmable Setup, Pulse And Hold Time for Write Signals per Chip Select
Programmable Data Float Time per Chip Select
External Wait Request
Automatic Switch to Slow Clock Mode
Asynchronous Read in Page Mode Supported: Page Size Ranges from 4 to 32 Bytes
NAND Flash additional logic supporting NAND Flash with Multiplexed Data/Address buses
Hardware Configurable number of chip selects from 1 to 4
Programmable timing on a per chip select basis
10. System Controller
The System Controller is a set of peripherals, which allow handling of key elements of the sys-
tem, such as power, resets, clocks, time, interrupts, watchdog, etc...
See the system controller block diagram in Figure 10-1 on page 32.
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