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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)： | 38/95頁 |
| 文件大?。?/td> | 568K |
| 代理商： | AT43USB353M-AC |
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38
AT43USB353M
3307B–USB–4/04
16-bit
Timer/Counter1
Operation
The 16-bit Timer/Counter1 clock source is prescaled from CK, 12 MHz. In addition, it can be
stopped as described in the specification for the Timer/Counter1 Control Registers (TCCR1A
and TCCR1B). The different status flags (overflow, compare match and capture event) are
found in the Timer/Counter Interrupt Flag Register (TIFR). Control signals are found in the
Timer/Counter1 Control Registers (TCCR1A and TCCR1B). The interrupt enable/disable set-
tings for Timer/Counter1 are found in the Timer/Counter Interrupt Mask Register (TIMSK).
The 16-bit Timer/Counter1 features both a high resolution and a high accuracy usage with the
lower prescaling opportunities. Similarly, the high prescaling opportunities makes the
Timer/Counter1 useful for lower speed functions or exact timing functions with infrequent
actions.
The Timer/Counter1 supports two Output Compare functions using the Output Compare Reg-
ister 1 A and B (OCR1A and OCR1B) as the data sources to be compared to the
Timer/Counter1 contents. The Output Compare functions include optional clearing of the
counter on compareA match, and actions on the Output Compare pins on both compare
matches.
Timer/Counter1 can also be used as a 8-, 9- or 10-bit Pulse With Modulator. In this mode the
counter and the OCR1A/OCR1B registers serve as a dual glitch-free stand-alone PWM with
centered pulses.
The Input Capture function of Timer/Counter1 provides a capture of the Timer/Counter1 con-
tents to the Input Capture Register - ICR1, triggered by an external event on the Input Capture
Pin (ICP/PF3). The actual capture event settings are defined by the Timer/Counter1 Control
Register (TCCR1B). The AT43USB353M has no comparator and the mux control signal, ACO,
is permanently set so that the ICP input is routed to the noise canceler. In the AT43USB353M,
the ICP function is shared with port D pin, PD4.
If the noise canceler function is enabled, the actual trigger condition for the capture event is
monitored over 4 samples, and all 4 must be equal to activate the capture flag.
Figure 12.
ICP Pin Schematic Diagram
ICP
0
1
NOISE CANCELER
EDGE SELECT
ICNC1
ICES1
ICF1
ACIC
ACO
ACIC: COMPARATOR IC ENABLE
ACC0: COMPARATOR OUTPUT
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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 安裝風格:SMD/SMT |
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