參數(shù)資料
型號(hào)： AT43USB351M-AC
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Full-speed/Low-speed USB Microcontroller with 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(yè)數(shù)： 30/101頁(yè)
文件大小： 624K
代理商： AT43USB351M-AC
30
AT43USB351M
3302E–USB–7/04
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.
Table 10.
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.
Function EP0 Interrupt
See “Control Transfers at Control Endpoint EP0” on page 72 for
details.
Function EP1 Interrupt
For an OUT endpoint it indicates that Function Endpoint 1 has
received a valid OUT packet and that the data is in the FIFO. For
an IN endpoint it means that the endpoint 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 endpoint it indicates that Function Endpoint 2 has
received a valid OUT packet and that the data is in the FIFO. For
an IN endpoint it means that the endpoint 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 endpoint it indicates that Function Endpoint 3 has
received a valid OUT packet and that the data is in the FIFO. For
an IN endpoint it means that the endpoint 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 EP4 Interrupt
For an OUT endpoint it indicates that Function Endpoint 4 has
received a valid OUT packet and that the data is in the FIFO. For
an IN endpoint it means that the endpoint 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.
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.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT43USB353M 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
AT43USB353M_03 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low Cost USB Microcontroller with Hub, ADC and PWM
AT43USB353M_04 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB353M-AC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB355 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
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