參數(shù)資料
型號: ATSAM3SD8CA-CU
廠商: Atmel
文件頁數(shù): 13/57頁
文件大?。?/td> 0K
描述: IC MCU 2X256KB CORTEX-M3 100-QFN
標(biāo)準(zhǔn)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(shè)備: 欠壓檢測/復(fù)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(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: *
包裝: *
20
11090BS–ATARM–22-Oct-13
SAM3S8/SD8 Summary
5.7
Fast Startup
The SAM3S8/SD8 allows the processor to restart in a few microseconds while the processor is
in wait mode or in sleep mode. A fast start up can occur upon detection of a low level on one of
the 19 wake-up inputs (WKUP0 to 15 + SM + RTC + RTT).
The fast restart circuitry, as shown in Figure 5-5, is fully asynchronous and provides a fast start-
up signal to the Power Management Controller. As soon as the fast start-up signal is asserted,
the PMC automatically restarts the embedded 4 MHz Fast RC oscillator, switches the master
clock on this 4MHz clock and reenables the processor clock.
Figure 5-5.
Fast Start-Up Sources
RTCEN
rtc_alarm
RTTEN
rtt_alarm
USBEN
usb_wakeup
fast_restart
WKUP15
FSTT15
WKUP1
WKUP0
FSTT0
FSTT1
Falling/Rising
Edge
Detector
Falling/Rising
Edge
Detector
Falling/Rising
Edge
Detector
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