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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)： | 74/101頁 |
| 文件大?。?/td> | 624K |
| 代理商： | AT43USB351M-AC |
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74
AT43USB351M
3302E–USB–7/04
No-data Status
Response State
The Function Interface Unit receives an IN token from the Host. The FIU responds with a zero
length DATA1 packet until receiving an ACK from the host, then asserts a TX_COMPLETE
interrupt.
Control Read Data
Response State
The Function Interface Unit receives an IN token from the Host. The FIU responds with NAKs
until TX_PACKET_READY is set. The FIU then sends the data in the FIFO upstream, retrying
until it successfully receives an ACK from the host. Finally, the FIU clears the
TX_PACKET_READY bit and asserts a TX_COMPLETE interrupt.
Hardware
Firmware
1.
IN token from Host
2.
Send DATA1(0)
3.
ACK from Host
Set TX COMPLETE
→
INT
4.
5.
Read UISR
6.
Read CSR0
7.
If SET ADDRESS, program the new
Address, set ADD_EN bit
Clear TX_COMPLETE, clear Data
End, set Force STALL in CAR0
Set UIAR[EP0 INTACK]
8.
9.
Hardware
Firmware
1.
IN token from Host
2.
a. If TX Packet Ready = 1, send
DATA0/DATA1
b. If TX Packet Ready = 0, send NAK
ACK from Host
3.
4.
Clear TX Packet Ready
Set TX Complete
→
INT
5.
Read UISR
6.
Read CSR0
7.
Clear TX COMPLETE in CAR0:
a. If more data: fill FIFO, set TX
Packet Ready, set DIR in CAR0
b. If no more data: set Force STALL,
set DATA END in CAR0
Set UIAR[EP0 INTACK] to clear
interrupt source
8.
Repeat steps 1 through 8
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相關(guān)代理商/技術(shù)參數(shù) |
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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_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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