參數(shù)資料
型號(hào)： AT43USB326-AC
廠(chǎng)商： ATMEL CORP
元件分類(lèi)： 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, MROM, 12 MHz, RISC MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 1.40 MM THICKNESS, 0.50 MM PITCH, PLASTIC, MS-026BBC, LQFP-48
文件頁(yè)數(shù)： 20/102頁(yè)
文件大?。?/td> 511K
代理商： AT43USB326-AC
20
AT43USB326
3313D–USB–04/06
Figure 5.
AT43USB326 Interrupt Structure
Reset Sources
The AT43USB326 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 AT43USB326 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.
–
Separated reset: A USB bus reset will only reset the USB hardware, while an
interrupt to the microcontroller will be generated if the BUS INT MSK bit, bit 3 of
SPRSMSK register, is also set.
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
TIMER0 OVF
INT0
RESET
Microcontroller
Interrupt
Logic
13
8
2
1
SOF
EOF2
FEP2
FEP1
FEP0
HEP0
FRMWUP
RSM
GLB SUSP
相關(guān)PDF資料
PDF描述
AT43USB326-AU Multimedia USB Keyboard Controller with Embedded Hub
AT43USB351M-AC Full-speed/Low-speed USB Microcontroller with ADC and PWM
AT43USB353M-AC Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB355E-AC Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
AT43USB355E-AU Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(lèi)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(chēng):ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
AT43USB351M_04 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Full-speed/ Low-speed USB Microcontroller with ADC and PWM
AT43USB351M-AC 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Full-speed/ Low-speed USB Microcontroller with ADC and PWM
AT43USB353M 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
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