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參數(shù)資料
| 型號： | AT43USB353M-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| 中文描述： | 8-BIT, MROM, 24 MHz, RISC MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數(shù)： | 26/95頁 |
| 文件大?。?/td> | 568K |
| 代理商： | AT43USB353M-AC |
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26
AT43USB353M
3307B–USB–4/04
USB Interrupt
Sources
The USB interrupts are described below.
All interrupts have individual enable, status, and mask bits through the interrupt enable regis-
ter and interrupt mask register. The Suspend and Resume interrupts are cleared by writing a 0
to the particular interrupt bit. All other interrupts are cleared when the microcontroller sets a bit
in an interrupt acknowledge register.
USB End-point
Interrupt Sources
An assertion or activation of one or more bits in the end-point's Control and Status Register
triggers the end-point interrupts. These triggers are different for control and non-control end-
points as described in Table 12. Please refer to the Control and Status Register for more
information.
Table 11.
USB Interrupt Sources
Interrupt
Description
SOF Received
Whenever USB hardware decodes a valid Start of Frame. The frame
number is stored in the two Frame Number Registers.
EOF2
Activated whenever the hub's frame timer reaches its EOF2 time point.
Function EP0 Interrupt
See “Control Transfers at Control End-point EP0” on page 58 for details.
Function EP1 Interrupt
For an OUT end-point it indicates that Function End-point 1 has received
a valid OUT packet and that the data is in the FIFO. For an IN end-point it
means that the end-point has received an IN token, sent out the data in
the FIFO and received an ACK from the Host. The FIFO is now ready to
be written by new data from the microcontroller.
Function EP2 Interrupt
For an OUT end-point it indicates that Function End-point 2 has received
a valid OUT packet and that the data is in the FIFO. For an IN end-point it
means that the end-point has received an IN token, sent out the data in
the FIFO and received an ACK from the Host. The FIFO is now ready to
be written by new data from the microcontroller.
Function EP3 Interrupt
For an OUT end-point it indicates that Function End-point 3 has received
a valid OUT packet and that the data is in the FIFO. For an IN end-point it
means that the end-point has received an IN token, sent out the data in
the FIFO and received an ACK from the Host. The FIFO is now ready to
be written by new data from the microcontroller.
Hub EP0 Interrupt
See “Control Transfers at Control End-point EP0” on page 58 for details.
FRWUP
USB hardware has received a embedded function remote wakeup
request.
GLB SUSP
USB hardware has received global suspend signaling and is preparing to
put the hub in the suspend mode. The microcontroller's firmware should
place the embedded function in the suspend state.
RSM
USB hardware received resume signaling and is propagating the resume
signaling. The microcontroller's firmware should take the embedded
function out of the suspended state.
BUS RESET
USB hardware received a USB bus reset. This applies only in cases
where a separation between USB bus reset and microcontroller reset is
required. Be very careful when using this feature.
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相關代理商/技術參數(shù) |
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|---|---|
| AT43USB355 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
| AT43USB355_02 | 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 |
| AT43USB355_06 | 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 |
| AT43USB355E-AC | 功能描述:8位微控制器 -MCU USB GAME CONTROL w/EMBED HUB-COM TEMP 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
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