参数资料
| 型号： | COP8CDR9LVA8 |
| 厂商： | National Semiconductor |
| 文件页数： | 62/111页 |
| 文件大小： | 0K |
| 描述： | IC MCU CMOS 8BIT 68-PLCC |
| 标准包装： | 18 |
| 系列： | COP8™ 8C |
| 核心处理器： | COP8 |
| 芯体尺寸： | 8-位 |
| 速度： | 20MHz |
| 连通性： | Microwire/Plus（SPI），UART/USART |
| 外围设备： | POR，PWM，WDT |
| 输入/输出数： | 59 |
| 程序存储器容量： | 32KB（32K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 1K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 数据转换器： | A/D 16x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 68-LCC（J 形引线） |
| 包装： | 管件 |
| 其它名称： | *COP8CDR9LVA8 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页当前第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页
SNOS535I – OCTOBER 2000 – REVISED MARCH 2013
5.12.4.1.4 HALT Exit Using Multi-Input Wake-up
The device can be brought out of the HALT mode by a transition received on one of the available Wake-
up pins. The pins used and the types of transitions sensed on the Multi-input pins are software
programmable. For information on programming and using the Multi-Input Wake-up feature, refer to Multi-
A start-up delay is required between the device wake-up and the execution of program instructions. The
start-up delay is mandatory, and is implemented whether or not the CLKDLY bit is set. This is because all
crystal oscillators and resonators require some time to reach a stable frequency and full operating
amplitude.
If the start-up delay is used, the IDLE Timer (Timer T0) provides a fixed delay from the time the clock is
enabled to the time the program execution begins. Upon exit from the HALT mode, the IDLE Timer is
enabled with a starting value of 256 and is decremented with each instruction cycle using the high speed
clock. (The instruction clock runs at one-fifth the frequency of the high speed oscillatory.) An internal
Schmitt trigger connected to the on-chip CKI inverter ensures that the IDLE Timer is clocked only when
the high speed oscillator has a large enough amplitude. (The Schmitt trigger is not part of the oscillator
closed loop.) When the IDLE Timer underflows, the clock signals are enabled on the chip, allowing
program execution to proceed. Thus, the delay is equal to 256 instruction cycles. After exiting HALT, the
Idle Timer will return to being clocked by the low speed clock.
NOTE
To ensure accurate operation upon start-up of the device using Multi-input Wake-up, the
instruction in the application program used for entering the HALT mode should be followed
by two consecutive NOP (no-operation) instructions.
5.12.4.1.5 Options
This device has two options associated with the HALT mode. The first option enables the HALT mode
feature, while the second option disables HALT mode operation. Selecting the disable HALT mode option
will cause the microcontroller to ignore any attempts to HALT the device under software control. See
Option Register for more details on this option bit.
5.12.4.2 Dual Clock Idle Mode
In the IDLE mode, program execution stops and power consumption is reduced to a very low level as with
the HALT mode. However, both oscillators, IDLE Timer (Timer T0), and Clock Monitor continue to operate,
allowing real time to be maintained. The Idle Timer is clocked by the low speed clock. The device remains
idle for a selected amount of time up to 1 second, and then automatically exits the IDLE mode and returns
to normal program execution using the high speed clock.
The device is placed in the IDLE mode under software control by setting the IDLE bit (bit 6 of the Port G
data register).
The IDLE Timer window is selectable from one of five values, 0.125 seconds, 0.25 seconds, 0.5 seconds,
1 second and 2 seconds. Selection of this value is made through the ITMR register.
The IDLE mode uses the on-chip IDLE Timer (Timer T0) to keep track of elapsed time in the IDLE state.
The IDLE Timer runs continuously at the low speed clock rate, whether or not the device is in the IDLE
mode. Each time the bit of the timer associated with the selected window toggles, the T0PND bit is set, an
interrupt is generated (if enabled), and the device exits the IDLE mode if in that mode. If the IDLE Timer
interrupt is enabled, the interrupt is serviced before execution of the main program resumes. (However,
the instruction which was started as the part entered the IDLE mode is completed before the interrupt is
serviced. This instruction should be a NOP which should follow the enter IDLE instruction.) The user must
reset the IDLE Timer pending flag (T0PND) before entering the IDLE mode.
As with the HALT mode, this device can also be returned to normal operation with a Multi-Input Wake-up
input.
54
Functional Description
Copyright 2000–2013, Texas Instruments Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC705JJ7CDW | IC MCU 8BIT 20-SOIC |
| C8051F583-IQ | IC 8051 MCU 128K FLASH 32-QFP |
| 67068-0000 | CONN USB RT ANG RECPT TYPE B BLK |
| P89LPC952FBD,157 | IC 80C51 MCU FLASH 8K 44-LQFD |
| LPC11C22FBD48/301, | IC MCU 32BIT 16KB FLASH 48LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| COP8CFE9 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit CMOS Flash Microcontroller with 8k Memory, Virtual EEPROM, and 10-Bit A/D |
| COP8CFE9HLQ9 | 功能描述:IC MCU FLASH 8BIT 8K A/D 44LLP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:COP8™ 8C 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| COP8CFE9HVA9/NOPB | 功能描述:IC MCU EEPROM 8BIT 8K 44-PLCC RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:COP8™ 8C 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| COP8CFE9IMT9/NOPB | 功能描述:IC MCU EEPROM 8BIT 8K 48-TSSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:COP8™ 8C 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| COP8CJ20 WAF | 制造商:Texas Instruments 功能描述: |
发布紧急采购，3分钟左右您将得到回复。