參數(shù)資料
型號(hào)： HMS81C2020ALQ
廠商： Electronic Theatre Controls, Inc.
英文描述： IND SM 4.7UH 15%
中文描述： CMOS單芯片8位微控制器與A / D轉(zhuǎn)換器
文件頁(yè)數(shù)： 82/107頁(yè)
文件大?。?/td> 1482K
代理商： HMS81C2020ALQ
HMS81C2012A/2020A
78
SEP. 2004 Ver 2.00
.
Figure 17-2 STOP Mode Release Timing by External Interrupt
Figure 17-3 Timing of STOP Mode Release by RESET
17.3 Wake-up Timer Mode
In the Wake-up Timer mode, the on-chip oscillator is not
stopped. Except the Prescaler(only 2048 divided ratio) and
Timer0, all functions are stopped, but the on-chip RAM
and Control registers are held. The port pins out the values
held by their respective port data register, port direction
registers.
The Wake-up Timer mode is activated by execution of
STOP instruction after setting the bit WAKEUP of
CKCTLR to “1”. (This register should be written by
byte operation. If this register is set by bit manipulation
instruction, for example "set1" or "clr1" instruction, it
may be undesired operation)
Note:
After STOP instruction, at least two or more NOP in-
struction should be written
Ex)
LDM TDR0,#0FFH
LDM TM0,#0001_1011B
LDM CKCTLR,#0100_1110B
STOP
NOP
NOP
In addition, the clock source of timer0 should be selected
to 2048 divided ratio. Otherwise, the wake-up function can
not work. And the timer0 can be operated as 16-bit timer
with timer1. (refer to timer function)The period of wake-
up function is varied by setting the timer data register 0,
TDR0.
Before executing Stop instruction, Basic Interval Timer must be set
properly by software to get stabilization time which is longer than 20ms.
Oscillator
(X
IN
pin)
~
n
0
BIT Counter
n+1
n+2
n+3
~
Normal Operation
Stop Operation
Normal Operation
1
FE
FF
0
1
2
~
~
~
t
>
20ms
by software
~
~
External Interrupt
Internal Clock
Clear
STOP Instruction
Executed
~
~
~
~
STOP Mode
Time can not be control by software
Oscillator
(XI pin)
~
~
~
STOP Instruction Execution
Stabilization Time
t
ST
= 64mS @4MHz
Internal
Clock
Internal
RESETB
~
~
~
~
~
RESETB
相關(guān)PDF資料
PDF描述
HMS81C2020AQ CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C20XXA CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C20XXA-HK CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HN2716 2048-word x 8bit Erasable and Electrically Programmable Only Memory
HN27512 512K (64K X 8 BIT ) UV AND OTP EPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HMS81C2020AQ 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C20XXA 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C20XXA-HK 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C2112A 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:[VFD MCU: High Voltage IO/ADC/HS PWM/SCI]
HMS81C2120A 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:[VFD MCU: High Voltage IO/ADC/HS PWM/SCI]
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*