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| 型號(hào)： | AT43USB355E-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| 中文描述： | 8-BIT, MROM, 12 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封裝： | 1.40 MM, PLASTIC, MS-026ACB, LQFP-64 |
| 文件頁(yè)數(shù)： | 29/115頁(yè) |
| 文件大小： | 610K |
| 代理商： | AT43USB355E-AC |
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29
AT43USB355
2603G–USB–04/06
External Interrupts
The external interrupts are triggered by the INT0 and INT1 pins. Observe that, if enabled, the
INT0/INT1 interrupt will trigger even if the INT0/INT1 pin is configured as an output. This fea-
ture provides a way of generating a software interrupt. The external interrupts can be triggered
by a falling or rising edge or a low level. This is set up as indicated in the specification for the
MCU Control Register (MCUCR) and the Interrupt Sense Control Register (ISCR). When
INT0/INT1 is enabled and is configured as level triggered, the interrupt will trigger as long as
the pin is held low. INT0/INT1 is set up as described in the specification for the MCU Control
Register (MCUCR).
Interrupt
Response Time
The interrupt execution response for all the enabled AVR interrupts is 4 clock cycles minimum.
4 clock cycles after the interrupt flag has been set, the program vector address for the actual
interrupt handling routine is executed. During this 4 clock cycle period, the Program Counter (2
bytes) is pushed onto the Stack, and the Stack Pointer is decremented by 2. The vector is nor-
mally a jump to the interrupt routine, and this jump takes 3 clock cycles. If an interrupt occurs
during execution of a multi-cycle instruction, this instruction is completed before the interrupt is
served.
A return from an interrupt handling routine (same as for a subroutine call routine) takes 4 clock
cycles. During these 4 clock cycles, the Program Counter (2 bytes) is popped back from the
Stack, the Stack Pointer is incremented by 2, and the I flag in SREG is set. When the AVR
exits from an interrupt, it will always return to the main program and execute one more instruc-
tion before any pending interrupt is served.
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| AT43USB355E-AU | Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB355M-AC | Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43USB355E-AU | 功能描述:8位微控制器 -MCU USB GAME CONTROL w/ EMBED HUB RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| AT43USB355M-AC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB355M-AU | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB370 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:USB 2.0 Full-Speed Host/Function Processor |
| AT43USB370E-AC | 功能描述:USB 接口集成電路 USB HOST DEVICE CONTROL - COM TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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