參數(shù)資料
型號(hào)： AT43USB325E-AU
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Multimedia USB Keyboard Controller with Embedded Hub
中文描述： 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 1.40 MM HEIGHT, GREEN, PLASTIC, MS-026ACB, LQFP-64
文件頁(yè)數(shù)： 23/109頁(yè)
文件大?。?/td> 643K
代理商： AT43USB325E-AU
23
3355C–USB–4/05
AT43USB325
Figure 4-2.
AT43USB325 Interrupt Structure
4.5
Reset Sources
The AT43USB325 has four sources of reset:
Power-on Reset
– The MCU is reset when the supply voltage is below the power-on reset
threshold.
External Reset
– The MCU is reset when a low level is present on the RESET pin for more
than 50 ns.
Watchdog Reset
– The MCU is reset when the watchdog timer period expires and the
watchdog is enabled.
USB Reset
– The AT43USB325 has a feature to separate the USB and microcontroller
resets. This feature is enabled by setting the BUS INT EN, bit 3 of the SPRSIE register. A
USB bus reset is defined as a SE0 (single ended zero) of at least 4 slow speed USB clock
cycles received by Port0. The internal reset pulse to the USB hardware and microcontroller
lasts for 24 oscillator periods.
– Resets not separated: A USB bus reset will also reset the microcontroller.
Suspend/Resume
Register
Suspend/Resume
Interrupt Enable
Register
Suspend/Resume
Interrupt Mask
Register
USB Interrupt
Flag Register
USB Interrupt
Enable Register
USB Interrupt
Mask Register
USB
INT0
RESET
Microcontroller
Interrupt
Logic
13
TIMER0 OVF
8
2
1
SOF
EOF2
FEP2
FEP1
FEP0
HEP0
FRMWUP
RSM
GLB SUSP
FEP3
TIMER OVF
7
COMPA
5
COMPB
6
INT1
3
BUS RESET
INTA
INTB
INTC
INTD
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT43USB326 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
AT43USB326_06 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub
AT43USB326-AC 功能描述:USB 接口集成電路 USB KEYBOARD F/LOGI- TECH - COM TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
AT43USB326-AU 功能描述:USB 接口集成電路 USB KEYBOARD FOR LOGITECH - IND TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
AT43USB351M 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
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