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| 型號(hào)： | ADUC843BS62-5 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
| 中文描述： | 8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP52 |
| 封裝： | PLASTIC, MO-112AC1, MQFP-52 |
| 文件頁(yè)數(shù)： | 54/88頁(yè) |
| 文件大小： | 903K |
| 代理商： | ADUC843BS62-5 |
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ADuC841/ADuC842/ADuC843
TIME INTERVAL COUNTER (TIC)
A TIC is provided on-chip for counting longer intervals than
the standard 8051 compatible timers are capable of. The TIC is
capable of timeout intervals ranging from 1/128 second to 255
hours. Furthermore, this counter is clocked by the external
32.768 kHz crystal rather than by the core clock, and it has the
ability to remain active in power-down mode and time long
power-down intervals. This has obvious applications for remote
battery-powered sensors where regular widely spaced readings
are required.
Rev. 0 | Page 54 of 88
Six SFRs are associated with the time interval counter, TIMECON
being its control register. Depending on the configuration of the
IT0 and IT1 bits in TIMECON, the selected time counter regis-
ter overflow clocks the interval counter. When this counter is
equal to the time interval value loaded in the INTVAL SFR, the
TII bit (TIMECON.2) is set and generates an interrupt if enabled.
If the part is in power-down mode, again with TIC interrupt
enabled, the TII bit wakes up the device and resumes code
execution by vectoring directly to the TIC interrupt service
vector address at 0053H. The TIC-related SFRs are described in
Table 24. Note also that the time based SFRs can be written
initially with the current time; the TIC can then be controlled
and accessed by user software. In effect, this facilitates the
implementation of a real-time clock. A block diagram of the
TIC is shown in Figure 56.
The TIC is clocked directly from a 32 kHz external crystal on
the ADuC842/ADuC843 and by the internal 32 kHz ±10% R/C
oscillator on the ADuC841. Due to this, instructions that access
the TIC registers will also be clocked at this speed. The user
should ensure that there is sufficient time between instructions
to these registers to allow them to execute correctly.
8-BIT
PRESCALER
HUNDREDTHS COUNTER
HTHSEC
SECONSEC
MINUTE COUNTER
MIN
HOUHOUR
TIEN
INTERVAL TIMEOUT
TIME INTERVAL COUNTER INTERRUPT
8-BIT
INTERVAL COUNTER
TIMER INTVAL
INTVAL
INTERVAL
MUX
TCEN
32.768kHz EXTERNAL CRYSTAL
ITS0, 1
COMPARE
COUNT = INTVAL
0
Figure 56. TIC, Simplified Block Diagram
相關(guān)PDF資料 |
PDF描述 |
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| ADUC842 | CON, RTANG 68 POS |
| ADUC842BCP | 12- Bit ADCs and DACs with Embedded Hi-Speed 62KB FLASH MCU |
| ADUC842BS | 12- Bit ADCs and DACs with Embedded Hi-Speed 62KB FLASH MCU |
| ADUC844BS62-5 | MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU |
| ADUC844BS62-3 | MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| ADUC843BSZ62-3 | 功能描述:IC ADC 12BIT W/FLASH MCU 52-MQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:96KB（96K x 8） 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 包裝:托盤(pán) 其它名稱(chēng):568-9587 |
| ADUC843BSZ62-5 | 功能描述:IC ADC 12BIT W/FLASH MCU 52-MQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:60 系列:PSOC® 3 CY8C38xx 核心處理器:8051 芯體尺寸:8-位 速度:67MHz 連通性:EBI/EMI，I²C，LIN，SPI，UART/USART 外圍設(shè)備:電容感應(yīng)，DMA，LCD，POR，PWM，WDT 輸入/輸出數(shù):25 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:2K x 8 RAM 容量:8K x 8 電壓 - 電源 (Vcc/Vdd):1.71 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 2x20b，D/A 4x8b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-VFQFN 裸露焊盤(pán) 包裝:托盤(pán) |
| ADUC844 | 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU |
| ADUC844BCP32-3 | 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU |
| ADUC844BCP32-5 | 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU |
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