- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25641 > MR80C52EXXX-30/883:R (TEMIC SEMICONDUCTORS) 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44 PDF資料下載
參數(shù)資料
| 型號(hào)： | MR80C52EXXX-30/883:R |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44 |
| 文件頁數(shù)： | 65/91頁 |
| 文件大小： | 19688K |
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頁當(dāng)前第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
41
7707F–AVR–11/10
AT90USB82/162
8.
Power Management and Sleep Modes
Sleep modes enable the application to shut down unused modules in the MCU, thereby saving
power. The AVR provides various sleep modes allowing the user to tailor the power consump-
tion to the application’s requirements.
To enter any of the five sleep modes, the SE bit in SMCR must be written to logic one and a
SLEEP instruction must be executed. The SM2, SM1, and SM0 bits in the SMCR Register select
which sleep mode (Idle, Power-down, Power-save, Standby or Extended standby) will be acti-
vated by the SLEEP instruction. See Table 8-1 for a summary. If an enabled interrupt occurs
while the MCU is in a sleep mode, the MCU wakes up. The MCU is then halted for four cycles in
addition to the start-up time, executes the interrupt routine, and resumes execution from the
instruction following SLEEP. The contents of the Register File and SRAM are unaltered when
the device wakes up from sleep. If a reset occurs during sleep mode, the MCU wakes up and
executes from the Reset Vector.
Figure 6-1 on page 25 presents the different clock systems in the AT90USB82/162, and their
distribution. The figure is helpful in selecting an appropriate sleep mode.
8.0.1
Sleep Mode Control Register – SMCR
The Sleep Mode Control Register contains control bits for power management.
Bit 7-4 - Reserved bits
These bits are reserved and will always read as zero.
Bits 3-1 – SM2..0: Sleep Mode Select Bits 2, 1, and 0
These bits select between the five available sleep modes as shown in Table 8-1.
Note:
1. Standby modes are only recommended for use with external crystals or resonators.
Bit 0– SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer’s
Bit
7654
3
2
1
0
––––
SM2
SM1
SM0
SE
SMCR
Read/Write
RRRR
R/W
Initial Value
0000
0
Table 8-1.
Sleep Mode Select
SM2
SM1
SM0
Sleep Mode
000
Idle
001
Reserved
010
Power-down
011
Power-save
100
Reserved
101
Reserved
110
Standby(1)
1
Extended Standby(1)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MR80C32-12P883D | 8-BIT, 12 MHz, MICROCONTROLLER, CQCC44 |
| MQ80C32-16SHXXX:RD | 8-BIT, 16 MHz, MICROCONTROLLER, CQFP44 |
| MF180C31-16R | 8-BIT, 16 MHz, MICROCONTROLLER, PQFP44 |
| MD80C52TXXX-36P883D | 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CDIP40 |
| MD80C32-30/883:D | 8-BIT, 30 MHz, MICROCONTROLLER, CDIP40 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MR80C86 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor |
| MR80C86/B | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述:Microprocessor, 16 Bit, 44 Pin, Ceramic, LCC |
| MR80C86-2 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor |
| MR80C86-2/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MR80C86-2/B | 制造商:Intersil Corporation 功能描述:MPU 80C86 16BIT CMOS 8MHZ 44PLCC - Rail/Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。