參數(shù)資料
型號(hào)： ATSAM3S-EK2
廠商： Atmel
文件頁(yè)數(shù)： 16/57頁(yè)
文件大?。?/td> 0K
描述： EVAL KIT FOR SAM3S8 & SAM3SD8
設(shè)計(jì)資源： SAM3S-EK2 Design & Mfg Files
SAM3S-EK2 Design & Mfg Files Information
SAM3S-EK2 Demo Release Notes
標(biāo)準(zhǔn)包裝： 1
類型： MCU
適用于相關(guān)產(chǎn)品： ATSAM3S 系列
所含物品： 板
23
11090BS–ATARM–22-Oct-13
SAM3S8/SD8 Summary
6.3
Test Pin
The TST pin is used for JTAG Boundary Scan Manufacturing Test or Fast Flash programming
mode of the SAM3S8/SD8 series. The TST pin integrates a permanent pull-down resistor of
about 15 k
Ω to GND, so that it can be left unconnected for normal operations. To enter fast pro-
gramming mode, see the Fast Flash Programming Interface (FFPI) section. For more on the
manufacturing and test mode, refer to the “Debug and Test” section of the product datasheet.
6.4
NRST Pin
The NRST pin is bidirectional. It is handled by the on-chip reset controller and can be driven low
to provide a reset signal to the external components or asserted low externally to reset the
microcontroller. It will reset the Core and the peripherals except the Backup region (RTC, RTT
and Supply Controller). There is no constraint on the length of the reset pulse and the reset con-
troller can guarantee a minimum pulse length. The NRST pin integrates a permanent pull-up
resistor to VDDIO of about 100 k
Ω. By default, the NRST pin is configured as an input.
6.5
ERASE Pin
The ERASE pin is used to reinitialize the Flash content (and some of its NVM bits) to an erased
state (all bits read as logic level 1). It integrates a pull-down resistor of about 100 k
Ω to GND, so
that it can be left unconnected for normal operations.
This pin is debounced by SCLK to improve the glitch tolerance. When the ERASE pin is tied high
during less than 100 ms, it is not taken into account. The pin must be tied high during more than
220 ms to perform a Flash erase operation.
The ERASE pin is a system I/O pin and can be used as a standard I/O. At startup, the ERASE
pin is not configured as a PIO pin. If the ERASE pin is used as a standard I/O, startup level of
this pin must be low to prevent unwanted erasing. Refer to Section 10.17 “Peripheral Signal Mul-
tiplexing on I/O Lines” on page 40. Also, if the ERASE pin is used as a standard I/O output,
asserting the pin to low does not erase the Flash.
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參數(shù)描述
ATSAM3U 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb-based Microcontrollers
ATSAM3U_10 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91ARM Cortex M3-based Microcontrollers
ATSAM3U1CA-AU 功能描述:ARM微控制器 - MCU 64K Flash, 20K SRAM 32-bit ARM Cortex M3 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
ATSAM3U1CA-CU 功能描述:ARM微控制器 - MCU 64K Flash, 20K SRAM 32-bit ARM Cortex M3 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
ATSAM3U1CB-AU 功能描述:ARM微控制器 - MCU LQFP, Grn, IT, MRL B RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
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