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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 31/101頁 |
| 文件大?。?/td> | 624K |
| 代理商： | AT43USB351M-AC |
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31
AT43USB351M
3302E–USB–7/04
USB Endpoint
Interrupt Sources
An assertion or activation of one or more bits in the endpoint's Control and Status Register
triggers the endpoint interrupts. These triggers are different for control and non-control end-
points as described in the table below. Please refer to the Control and Status Register for
more information.
USB Interrupt Status Register – UISR
Bit 7 – SOF INT: Start of Frame Interrupt
This bit is asserted after the USB hardware receives a valid SOF packet.
Bit 6, 5 – Res: Reserved Bit
These bits are reserved and always read as zero.
Bit 4 – FEP4 INT: Function Endpoint 4 Interrupt
Bit 3 – FEP3 INT: Function Endpoint 3 Interrupt
Bit 2 – FEP2 INT: Function Endpoint 2 Interrupt
Bit 1 – FEP1 INT: Function Endpoint 1 Interrupt
Bit 0 – FEP0 INT: Function Endpoint 0 Interrupt
The hub and function interrupt bits will be set by the hardware whenever the following bits in
the corresponding endpoint's Control and Status Register are modified by the USB hardware:
1.
RX OUT Packet is set (control and OUT endpoints)
2.
TX Packet Ready is cleared AND TX Complete is set (control and IN endpoints)
3.
RX SETUP is set (control endpoints only)
4.
TX Complete is set
Table 11.
USB Endpoint Interrupt Sources
Bit
Endpoint type
RX_OUT_PACKET
CONTROL, OUT
TX_COMPLETE
CONTROL, IN
STALL_SENT
CONTROL, IN
RX_SETUP
CONTROL
Bit
7
6
5
4
3
2
1
0
$1FF7
SOF INT
–
–
FE4 INT
FE3 INT
FE2 INT
FE1 INT
FE0 INT
UISR
Read/Write
R
R
R
R
R
R
R
R
Initial Value
0
0
0
0
0
0
0
0
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| AT43USB353M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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| 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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