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| 型號(hào)： | AT43USB355M-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| 中文描述： | 8-BIT, MROM, 12 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封裝： | 1.40 MM, PLASTIC, MS-026ACB, LQFP-64 |
| 文件頁(yè)數(shù)： | 51/115頁(yè) |
| 文件大小： | 610K |
| 代理商： | AT43USB355M-AC |
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51
AT43USB355
2603G–USB–04/06
(CS12..CS10 = 001 or 000), the PWM output goes active when the counter reaches the TOP
value, but the down-counting compare match is not interpreted to be reached before the next
time the counter reaches the TOP value, making a one-period PWM pulse.
Note:
X = A or B
In PWM mode, the Timer Overflow Flag1, TOV1, is set when the counter advances from
$0000. Timer Overflow Interrupt1 operates exactly as in normal Timer/Counter mode, i.e. it is
executed when TOV1 is set provided that Timer Overflow Interrupt1 and global interrupts are
enabled. This also applies to the Timer Output Compare1 flags and interrupts.
Watchdog Timer
The Watchdog Timer is clocked from a 1 MHz clock derived from the 6 MHz on chip oscillator.
By controlling the Watchdog Timer prescaler, the Watchdog reset interval can be adjusted,
see Table 18 for a detailed description. The WDR (Watchdog Reset) instruction resets the
Watchdog Timer. Eight different clock cycle periods can be selected to determine the reset
period. If the reset period expires without another Watchdog reset, the AT43USB355 resets
and executes from the reset vector.
To prevent unintentional disabling of the watchdog, a special turn-off sequence must be fol-
lowed when the watchdog is disabled. Refer to the description of the Watchdog Timer Control
Register for details.
Figure 17.
Watchdog Timer
Table 17.
PWM Outputs OCR1X = $0000 or Top
COM1X1
COM1X0
OCR1X
Output OC1X
1
0
$0000
L
1
0
TOP
H
1
1
$0000
H
1
1
TOP
L
O
O
O
O
O
O
O
O
1 MHz Clock
MCU Reset
WDE
WDP2
WDP1
WDP0
Watchdog
Reset
Watchdog Prescaler
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| AT43USB355M-AU | Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
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| AT45BR3214B | 32-MEGABIT DATAFLASH + 4-MEGABIT SRAM STACK MEMORY |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43USB355M-AU | 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 |
| AT43USB370 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:USB 2.0 Full-Speed Host/Function Processor |
| AT43USB370E-AC | 功能描述:USB 接口集成電路 USB HOST DEVICE CONTROL - 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 |
| AT43USB380 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:On-The-Go Upgrade of the AT43USB370 USB 2.0 Full-Speed Host/Function Processor |
| AT43USB380E-AC | 功能描述:USB 接口集成電路 USB OTG/HOST/FUNC DEVICE CNTRL 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 |
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