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參數(shù)資料
| 型號(hào)： | COP8CCR9KMT8 |
| 廠商： | National Semiconductor |
| 文件頁數(shù)： | 65/111頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU EEPROM 8BIT 32K 56-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 34 |
| 系列： | COP8™ 8C |
| 核心處理器： | COP8 |
| 芯體尺寸： | 8-位 |
| 速度： | 20MHz |
| 連通性： | Microwire/Plus（SPI），UART/USART |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 49 |
| 程序存儲(chǔ)器容量： | 32KB（32K x 8） |
| 程序存儲(chǔ)器類型： | 閃存 |
| RAM 容量： | 1K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 16x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 56-TFSOP（0.240"，6.10mm 寬） |
| 包裝： | 管件 |
| 其它名稱： | *COP8CCR9KMT8 |
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SNOS535I – OCTOBER 2000 – REVISED MARCH 2013
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.
The IDLE Timer cannot be started or stopped under software control, and it is not memory mapped, so it
cannot be read or written by the software. Its state upon Reset is unknown. Therefore, if the device is put
into the IDLE mode at an arbitrary time, it will stay in the IDLE mode for somewhere between 30 s and
the selected time period.
In order to precisely time the duration of the IDLE state, entry into the IDLE mode must be synchronized to
the state of the IDLE Timer. The best way to do this is to use the IDLE Timer interrupt, which occurs on
every underflow of the bit of the IDLE Timer which is associated with the selected window. Another
method is to poll the state of the IDLE Timer pending bit T0PND, which is set on the same occurrence.
The Idle Timer interrupt is enabled by setting bit T0EN in the ICNTRL register.
Any time the IDLE Timer window length is changed there is the possibility of generating a spurious IDLE
Timer interrupt by setting the T0PND bit. The user is advised to disable IDLE Timer interrupts prior to
changing the value of the ITSEL bits of the ITMR Register and then clear the T0PND bit before attempting
to synchronize operation to the IDLE Timer.
As with the HALT mode, it is necessary to program two NOP's to allow clock resynchronization upon
return from the IDLE mode. The NOP's are placed either at the beginning of the IDLE Timer interrupt
routine or immediately following the “enter IDLE mode” instruction.
For more information on the IDLE Timer and its associated interrupt, see the description in the Timer T0
Figure 5-15. Multi-Input Wake-Up Logic
Copyright 2000–2013, Texas Instruments Incorporated
Functional Description
57
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| COP8CCR9LVA7 | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| COP8CCR9LVA7/63 | 制造商:Texas Instruments 功能描述: |
| COP8CCR9LVA7/63SN | 功能描述:閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| COP8CCR9LVA7/NOPB | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| COP8CCR9LVA763SN | 制造商:National Semiconductor 功能描述:MCU 8-bit COP8 CISC 32KB Flash 5V 68-Pin PLCC |
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