- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄352483 > AT32UC3A1512 (Atmel Corp.) AVR32 32-Bit Microcontroller PDF資料下載
參數(shù)資料
| 型號(hào)： | AT32UC3A1512 |
| 廠商： | Atmel Corp. |
| 英文描述： | AVR32 32-Bit Microcontroller |
| 中文描述： | AVR32 32位微控制器 |
| 文件頁數(shù)： | 83/109頁 |
| 文件大?。?/td> | 10824K |
| 代理商： | AT32UC3A1512 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁當(dāng)前第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁
60
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
A simplified block diagram of the 8-bit Timer/Counter is shown in Figure 11-1 on page 59. For the actual placement of I/O
pins, refer to Figure 1-1 on page 2. CPU accessible I/O Registers, including I/O bits and I/O pins, are shown in bold. The
device-specific I/O Register and bit locations are listed in the “Register Description” on page 69.
11.2.1 Registers
The Timer/Counter (TCNT0) and Output Compare Registers (OCR0A and OCR0B) are 8-bit registers. Interrupt request
(abbreviated to Int.Req. in Figure 11-1) signals are all visible in the Timer Interrupt Flag Register (TIFR). All interrupts are
individually masked with the Timer Interrupt Mask Register (TIMSK). TIFR and TIMSK are not shown in the figure.
The Timer/Counter can be clocked internally, via the prescaler, or by an external clock source on the T0 pin. The Clock
Select logic block controls which clock source and edge the Timer/Counter uses to increment (or decrement) its value.
The Timer/Counter is inactive when no clock source is selected. The output from the Clock Select logic is referred to as
the timer clock (clkT0).
The double buffered Output Compare Registers (OCR0A and OCR0B) is compared with the Timer/Counter value at all
times. The result of the compare can be used by the Waveform Generator to generate a PWM or variable frequency
output on the Output Compare pins (OC0A and OC0B). See “Output Compare Unit” on page 61 for details. The Compare
Match event will also set the Compare Flag (OCF0A or OCF0B) which can be used to generate an Output Compare
interrupt request.
11.2.2 Definitions
Many register and bit references in this section are written in general form. A lower case “n” replaces the Timer/Counter
number, in this case 0. A lower case “x” replaces the Output Compare Unit, in this case Compare Unit A or Compare Unit
B. However, when using the register or bit defines in a program, the precise form must be used, i.e., TCNT0 for
accessing Timer/Counter0 counter value and so on.
The definitions in Table 11-1 are also used extensively throughout the document.
Table 11-1.
Definitions
11.3
Clock Sources
The Timer/Counter can be clocked by an internal or an external clock source. The clock source is selected by the Clock
Select logic which is controlled by the Clock Select (CS0[2:0]) bits located in the Timer/Counter Control Register
(TCCR0B). For details on clock sources and prescaler, see “Timer/Counter Prescaler” on page 103.
11.4
Counter Unit
The main part of the 8-bit Timer/Counter is the programmable bi-directional counter unit. Figure 11-2 on page 61 shows
a block diagram of the counter and its surroundings.
Constant
Description
BOTTOM
The counter reaches BOTTOM when it becomes 0x00
MAX
The counter reaches its MAXimum when it becomes 0xFF (decimal 255)
TOP
The counter reaches the TOP when it becomes equal to the highest value in the count sequence. The
TOP value can be assigned to be the fixed value 0xFF (MAX) or the value stored in the OCR0A Register.
The assignment depends on the mode of operation
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT32UC3B0128 | 32-Bit Microcontroller |
| AT32UC3B0256 | 32-Bit Microcontroller |
| AT32UC3B064 | 32-Bit Microcontroller |
| ATMEGA164P | -bit AVR Microcontroller with 8K Bytes In- System Programmable Flash |
| ATMEGA48P | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT32UC3A1512-AU | 制造商:Atmel Corporation 功能描述: |
| AT32UC3A1512AU-AUR | 功能描述:32位微控制器 - MCU 512K FLSH AUDIO 100LQFP 85C GRN REEL RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| AT32UC3A1512-AUR | 功能描述:32位微控制器 - MCU 512KB, 100LQFP 85deg. Green RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| AT32UC3A1512-AUT | 功能描述:32位微控制器 - MCU 32-bit 512KB Flash RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| AT32UC3A3128 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:32-bit AVR? Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。