參數(shù)資料
型號: ATTINY44A-MMHR
廠商: Atmel
文件頁數(shù): 135/135頁
文件大?。?/td> 0K
描述: MCU AVR 4KB FLASH 20MHZ 20QFN
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
tinyAVR Introduction
標(biāo)準(zhǔn)包裝: 1
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: USI
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 12
程序存儲器容量: 4KB(2K x 16)
程序存儲器類型: 閃存
EEPROM 大小: 256 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-VFQFN 裸露焊盤
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: ATTINY44A-MMHRDKR
99
32015G–AVR32–09/09
AT32AP7001
11.5.6
Sleep modes
In normal operation, all clock domains are active, allowing software execution and peripheral
operation. When the CPU is idle, it is possible to switch off the CPU clock and optionally other
clock domains to save power. This is activated by the sleep instruction, which takes the sleep
mode index number as argument.
11.5.6.1
Entering and exiting sleep modes
The sleep instruction will halt the CPU and all modules belonging to the stopped clock domains.
The modules will be halted regardless of the bit settings of the mask registers.
Oscillators and PLL’s can also be switched off to save power. These modules have a relatively
long start-up time, and are only switched off when very low power consumption is required.
The CPU and affected modules are restarted when the sleep mode is exited. This occurs when
an interrupt triggers, or the WAKE_N pin is asserted. Note that even though an interrupt is
enabled in sleep mode, it may not trigger if the source module is not clocked.
Table 11-1.
Maskable module clocks in AT32AP7001.
Bit
CPUMASK
HSBMASK
PBAMASK
PBBMASK
0
PICO
EBI
SPI0
PM/EIC/RTC/WDT
1
-
PBA
SPI1
INTC
2
-
PBB
TWI
HMATRIX
3
-
HRAMC
USART0
TC0
4
-
HSB-HSB Bridge
USART1
TC1
5
-
ISI
USART2
PWM
6
-
USB
USART3
7
-
SSC0
8
-
SSC1
DAC
9
-
SSC2
MCI
10
-
DMA
PIOA
AC97C
11
-
PIOB
ISI
12
-
PIOC
USB
13
-
PIOD
SMC
14
-
PIOE
SDRAMC
15
-
PSIF
ECC
16
-
PDC
-
31:17
----
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