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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)： | 79/95頁 |
| 文件大?。?/td> | 568K |
| 代理商： | AT43USB353M-AC |
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79
AT43USB353M
3307B–USB–4/04
Hub Port Status Change Register – PSCR1..3
The microcontroller firmware uses the bits in this register to monitor when a port status change
has occurred, which then gets reported to the host through the Port Change Field
wPortChange.
Except for bit 3, the Port Overcurrent Indicator Change, the bits in this register are set by the
USB hardware. Otherwise, the firmware should only clear these bits.
Bit 7..5 – Reserved
These bits are reserved in the AT43USB353M and will read as zero.
Bit 4 – RSTSC: Port Reset Status Change
0 = No change
1 = Reset complete
This bit is set by the USB hardware after it completes RESET signaling which is initiated when
the Reset and Enable Port command is detected at the Port Control Register, HPCON. The
firmware sends this command when it decodes a SetPortFeature(PORT_RESET) request
from the host.
At EOF2 after the hardware completes the port reset, the hardware sets the Port Enable Sta-
tus bit and clears the Port Reset Status bit of the Hub Port Status Register, HPSTAT. Cleared
by firmware, ClearPortFeature(PORT_RESET).
Bit 3 – POCIC: Port Overcurrent Indicator Change
0 = No change has occurred on Overcurrent Indicator
1 = Overcurrent Indicator has changed
This bit is relevant to hubs with individual overcurrent reporting only. The firmware sets this bit
as a result of detecting overcurrent at the ports OVC# pin. The firmware clears bit through
ClearPortFeature(PORT_OVER_CURRENT). For Port 1, this bit is always cleared.
Bit 2 – PSSC: Port Suspend Status Change
0 = No change
1 = Resume completed
Port 2, 3 set by hardware upon completion of firmware initiated resume process. Port 1 set by
firmware 20 ms after the next EOF2 after completion of resume process. RESUME signaling is
initiated through global resume, selective resume and remote wakeup. Cleared by firmware
via host request ClearPortFeature(PORT_SUSPEND).
Bit 1 – PESC: Port Enable/Disable Status Change
0 = No change has occurred on Port Enable/Disable Status
1 = Port Enable/Disable status has changed
Bit
7
6
5
4
3
2
1
0
Port1 $1FB0
–
–
–
RSTSC
POCIC
PSSC
PESC
PCSC
PSCR1
Port2 $1FB1
–
–
–
RSTSC
POCIC
PSSC
PESC
PCSC
PSCR2
Port3 $1FB2
–
–
–
RSTSC
POCIC
PSSC
PESC
PCSC
PSCR3
Read/Write
R
R
R
R
R
R
R
R
Initial Value
0
0
0
0
0
0
0
0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(fēng)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(fēng)格:SMD/SMT |
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