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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)： | 26/102頁(yè) |
| 文件大?。?/td> | 511K |
| 代理商： | AT43USB326-AC |
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26
AT43USB326
3313D–USB–04/06
External Interrupts
While in the suspend state, the depression of any key will trigger a resume interrupt. This is
the only available external interrupt in the AT43USB326.
Interrupt
Response Time
The interrupt execution response for all the enabled AVR interrupts is 4 clock cycles minimum.
4 clock cycles after the interrupt flag has been set, the program vector address for the actual
interrupt handling routine is executed. During this 4 clock cycle period, the Program Counter (2
bytes) is pushed onto the Stack, and the Stack Pointer is decremented by 2. The vector is nor-
mally a jump to the interrupt routine, and this jump takes 3 clock cycles. If an interrupt occurs
during execution of a multi-cycle instruction, this instruction is completed before the interrupt is
served.
A return from an interrupt handling routine (same as for a subroutine call routine) takes 4 clock
cycles. During these 4 clock cycles, the Program Counter (2 bytes) is popped back from the
Stack, the Stack Pointer is incremented by 2, and the I flag in SREG is set. When the AVR
exits from an interrupt, it will always return to the main program and execute one more instruc-
tion before any pending interrupt is served.
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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