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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)： | 73/101頁 |
| 文件大小： | 624K |
| 代理商： | AT43USB351M-AC |
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73
AT43USB351M
3302E–USB–7/04
The following information describes how the AT43USB351M’s USB hardware and firmware
operates during a control transfer between the host and the function’s control endpoint.
Idle State
This is the default state from power-up.
Setup Response State
The Function Interface Unit (FIU) receives a SETUP token with 8 bytes of data from the Host.
The FIU stores the data in the FIFO, sends an ACK back to the host and asserts an
RX_SETUP interrupt.
Legend:
DATA1/DATA0 = Data packet with DATA1 or DATA2 PID
DATA1(0) = Zero length DATA1 packet
Hardware
Firmware
1.
SETUP token, Data from Host
2.
ACK to Host
3.
Store data in FIFO
Set RX SETUP
→
INT
4.
5.
Read UISR
6.
Read CSR0
7.
Read Byte Count
8.
Read FIFO
9.
Parse command data
10. Write to H/FCAR0:
a. If Control Read: set DIR, clear RX
SETUP, fill FIFO, set TX Packet
Ready in CAR0
b. If Control Write: clear DIR in CAR0
c. If no Data Stage: set Data End, clear
DIR, set Force STALL in CAR0
11. Set UIAR[EP0 INTACK] to clear the
interrupt source
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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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