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參數(shù)資料
| 型號： | AT43USB355M-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 |
| 文件頁數(shù)： | 100/115頁 |
| 文件大?。?/td> | 610K |
| 代理商： | AT43USB355M-AC |
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100
AT43USB355
2603G–USB–04/06
connect, port disconnect or resume signaling received at a downstream port or, in case of the
embedded function, through an external interrupt.
A remote wakeup initiated at a downstream port is similar in many respects to a global
resume. The USB hardware enables the oscillator/PLL, propagates the RESUME signaling,
and sets the RSM bit of the SPRSR which generates an interrupt. The microcontroller starts
executing where it left off and services the interrupt. As part of the ISR, the firmware clears the
GLB_SUSP bit.
A remote wakeup from the embedded function is initiated through INT0 or the external inter-
rupt, INT1, which enables the oscillator/PLL and the USB hardware. The USB hardware drives
RESUME signaling and sets the FRMWUP and RSM bits of SPRSR which generates an inter-
rupt to the microcontroller. The microcontroller starts executing where it left off and services
the interrupt. As part of the ISR, the firmware clears the GLB SUSP bit.
At completion of RESUME signaling, the USB hardware sets the Port Suspend Status Change
bits of the Hub Port Status Change Registers.
Selective Suspend
and Resume
See section on Hub Port Control Register, HPCON.
Suspend and Resume
Process
Global Suspend
The Host stops sending packets, the hardware detects this as global suspend signaling and
stops all downstream signaling. Finally, the hardware asserts the GLB_SUSP interrupt.
Hardware
Firmware
1.Host stops sending packets
2.
Global suspend signaling detected
3.
Stop downstream signaling
Set GBL SUS bit
→
interrupt
4.
5.
Shut down any peripheral activity
6.
Set Sleep Enable and Sleep Mode bits
of MCUCR
Set GPIO to low power state if required
7.
8.
Set UOVCER bit 2
9.
Execute SLEEP instruction
10. SLEEP bit detected
11. Shut off oscillator
相關PDF資料 |
PDF描述 |
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| AT43USB355M-AU | Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB380 | On-The-Go Upgrade of the AT43USB370 USB 2.0 Full-Speed Host/Function Processor |
| AT45BR3214B | 32-MEGABIT DATAFLASH + 4-MEGABIT SRAM STACK MEMORY |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43USB380 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:On-The-Go Upgrade of the AT43USB370 USB 2.0 Full-Speed Host/Function Processor |
| AT43USB380E-AC | 功能描述:USB 接口集成電路 USB OTG/HOST/FUNC DEVICE CNTRL 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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