- 您現在的位置：買賣IC網 > PDF目錄371120 > MM0-80C32E-30-E (ATMEL CORP) Rad. Tolerant 8-bit ROMless Microcontroller PDF資料下載
參數資料
| 型號： | MM0-80C32E-30-E |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Rad. Tolerant 8-bit ROMless Microcontroller |
| 中文描述： | 8-BIT, 30 MHz, MICROCONTROLLER, UUC40 |
| 封裝： | DIE |
| 文件頁數： | 6/20頁 |
| 文件大小： | 298K |
| 代理商： | MM0-80C32E-30-E |
6
80C32E
4149M–AERO–06/04
Idle Mode
An instruction that sets PCON.0 causes that to be the last instruction executed before
going into Idle mode. In Idle mode, the internal clock signal is gated off to the CPU, but
not to the interrupt, Timer, and Serial Port functions. The CPU status is preserved in its
entirety: the Stack Pointer, Program Counter, Program Status Word, Accumulator, RAM
and all other registers maintain their data during Idle. The port pins hold the logical
states they had at the time Idle was activated. ALE and PSEN hold at logic high levels.
There are two ways to terminate the Idle. Activation of any enabled interrupt will cause
PCON.0 to be cleared by hardware, terminating the Idle mode. The interrupt will be ser-
viced, and following RETI the next instruction to be executed will be the one following
the instruction that put the device into idle.
The flag bits GF0 and GF1 can be used to give an indication if an interrupt occurred dur-
ing normal operation or during an Idle. For example, an instruction that activates Idle
can also set one or both flag bits. When Idle is terminated by an interrupt, the interrupt
service routine can examine the flag bits.
The other way of terminating the Idle mode is with a hardware reset. Since the clock
oscillator is still running, the hardware reset needs to be held active for only two
machine cycles (24 oscillator periods) to complete the reset.
Power-down Mode
To save maximum power, a power-down mode can be invoked by software.
In power-down mode, the oscillator is stopped and the instruction that invoked power-
down mode is the last instruction executed. The internal RAM and SFRs retain their
value until the power-down mode is terminated. V
CC
can be lowered to save further
power. Either a hardware reset or an external interrupt can cause an exit from power-
down. To properly terminate power-down, the reset or external interrupt should not be
executed before V
CC
is restored to its normal operating level and must be held active
long enough for the oscillator to restart and stabilize.
Only external interrupts INT0 and INT1 are useful to exit from power-down. For that,
interrupt must be enabled and configured as level or edge sensitive interrupt input.
Holding the pin low restarts the oscillator but bringing the pin high completes the exit as
detailed in Figure 1. When both interrupts are enabled, the oscillator restarts as soon as
one of the two inputs is held low and Power-down exit will be completed when the first
input will be released. In this case the higher priority interrupt service routine is executed
Once the interrupt is serviced, the next instruction to be executed after RETI will be the
one following the instruction that put 80C32E into power-down mode.
Figure 1.
Power-down Exit Waveform
Exit from power-down by reset redefines all the SFRs, exit from power-down by external
interrupt does no affect the SFRs.
INT1
INT0
XTAL1
Power-down phase
Oscillator restart phase
Active phase
Active phase
相關PDF資料 |
PDF描述 |
|---|---|
| MM1026 | Monolithic IC MM1026, 1245, 1080 ,1134 |
| MM1221 | 2-Input 1-Output Video Switch |
| MM1222 | 2-Input 1-Output Video Switch |
| MM1223 | 2-Input 1-Output Video Switch |
| MM1224 | 2-Input 1-Output Video Switch |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MM0-80C32E-30-SV | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Rad. Tolerant 8-bit ROMless Microcontroller |
| MM08-60APS-ZTK | 制造商:SICK 功能描述:SENSOR MAGNETIC 60MM PNP M8 制造商:SICK 功能描述:SENSOR, MAGNETIC, 60MM, PNP, M8 |
| MM08-60APS-ZTO | 制造商:SICK AG 功能描述:PROXIMITY SWITCH |
| MM090-12IO6 | 制造商:n/a 功能描述:Power Module |
| MM10 | 制造商:C&K Components 功能描述:- Bulk 制造商:SPC Multicomp 功能描述:MOTOR MINIATURE 1.5-3.0V 制造商:SPC Multicomp 功能描述:MOTOR, MINIATURE, 1.5-3.0V, 16.3KRPM 制造商:SANYO Semiconductor Co Ltd 功能描述:MOTOR MINIATURE 1.5-3V 1.23 制造商:SPC Multicomp 功能描述:Compact 12,000 RPM Hobby Motor 1.5V - 6V DC 制造商:SPC Multicomp 功能描述:MOTOR, MINIATURE, 3V, 12000RPM; Power Rating:1.23W; Rotational Speed Max:12000rpm; Torque Max:10g-cm; Body Diameter:20.1mm; External Height:25mm |
發布緊急采購，3分鐘左右您將得到回復。