- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375268 > ADUC834 (Analog Devices, Inc.) MicroConverter, Dual 16-/24- Bit ADCs with Embedded 62KB FLASH MCU PDF資料下載
參數(shù)資料
| 型號： | ADUC834 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | MicroConverter, Dual 16-/24- Bit ADCs with Embedded 62KB FLASH MCU |
| 中文描述： | MicroConverter的，雙與嵌入62KB閃存MCU 16-/24-位ADC |
| 文件頁數(shù)： | 47/72頁 |
| 文件大?。?/td> | 1451K |
| 代理商： | ADUC834 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁當前第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁
REV.
P
rC (12 March 2002)
ADuC834
–
47
–
PRELIMINARY TECHNICAL DATA
T IME INT E RVAL C OUNT E R (T IC )
A time interval counter is provided on-chip for:
- counting longer intervals than the standard
8051-compatible timers are capable of
- periodically the part up from power down
- implementing a Real T ime Clock
T he T IC is capable of timeout intervals ranging from 1/128th
second to 255 hours. Furthermore, this counter is clocked by
the crystal oscillator rather than the PL L and thus has the
ability to remain active in power-down mode and time long
power-down intervals. T his has obvious applications for remote
battery-powered sensors where regular widely spaced readings
are required.
If the T IC is being used as a real time clock (T CEN is set) then
the T CEN bit itself and the HT HSEC, SEC, MIN and HOUR
registers do not get reset after a hardware or watchdog timer
reset. T his is to prevent the need to recalibrate the real time
clock after a reset. However, these registers will get reset to 00h
after a power cycle (independent of T CEN) or after any reset if
T CEN is clear.
Six SFRs are associated with the time interval counter, T IMECON
being its control register. Depending on the configuration of the
IT 0 and IT 1 bits in T IMECON, the selected time counter register
overflow will clock the interval counter. When this counter is
equal to the time interval value loaded in the INT VAL SFR,
the T II bit (T IMECON.2) is set and generates an interrupt if
enabled (See IEIP2 SFR description under Interrupt System
later in this data sheet.) If the ADuC834 is in power-down
mode, again with T IC interrupt enabled, the T II bit will wake
up the device and resume code execution by vectoring directly
to the T IC interrupt service vector address at 0053 hex. T he
T IC-related SFRs are described in T able X VIII. Note also that
the timebase SFRs can be written initially with the current
time, the T IC can then be controlled and accessed by user soft-
ware. In effect, this facilitates the implementation of a real-time
clock. A block diagram of the T IC is shown in Figure 42.
8-BIT
PRESCALER
HUNDREDTHS COUNTER
HTHSEC
SECOND COUNTER
SEC
MINUTE COUNTER
MIN
HOUR COUNTER
HOUR
TIEN
INTERVAL TIMEOUT
TIME INTERVAL COUNTER INTERRUPT
8-BIT
INTERVAL COUNTER
INTVAL SFR
INTERVAL
TIMEBASE
SELECTION
MUX
TCEN
32.768kHz EXTERNAL CRYSTAL
ITS0, 1
EQUAL
Figure 42. TIC, Simplified Block Diagram
T able X VIII. T IME CON SFR Bit Designations
Bit
Name
Description
7
6
5
4
---
---
IT S1
IT S0
Reserved for Future Use.
Reserved for Future Use. For future product code compatibility this bit should be written as a
‘
1.
’
Interval T imebase Selection Bits.
Written by user to determine the interval counter update rate.
IT S1
IT S0
Interval T imebase
0
0
1/128 Second
0
1
Seconds
1
0
Minutes
1
1
Hours
Single T ime Interval Bit.
Set by user to generate a single interval timeout. If set, a timeout will clear the T IEN bit.
Cleared by user to allow the interval counter to be automatically reloaded and start counting again at
each interval timeout.
T IC Interrupt Bit.
Set when the 8-bit Interval Counter matches the value in the INT VAL SFR.
Cleared
by user software.
T ime Interval Enable Bit.
Set by user to enable the 8-bit time interval counter.
Cleared by user to disable and clear the contents of the interval counter.
T ime Clock Enable Bit.
Set by user to enable the time clock to the time interval counters.
Cleared by user to disable the clock to the time interval counters and clear the time interval SFRs.
T he time registers (HT HSEC, SEC, MIN and HOUR) can be written while T CEN is low.
3
ST I
2
T II
1
T IEN
0
T CEN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADUC834BS | MicroConverter, Dual 16-/24- Bit ADCs with Embedded 62KB FLASH MCU |
| ADUM1310BRWZ | Triple-Channel Digital Isolator with Programmable Default Output |
| ADUM1310BRWZ-RL | Triple-Channel Digital Isolator with Programmable Default Output |
| ADUM3300 | Triple-Channel, Digital Isolators, Enhanced System-Level ESD Reliability |
| ADUM3300ARWZ | Triple-Channel, Digital Isolators, Enhanced System-Level ESD Reliability |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADUC834_02 | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62 kB Flash MCU |
| ADUC834BCP | 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.58MHZ 3.3/5V 56LFCSP - Bulk 制造商:Analog Devices 功能描述: |
| ADUC834BCPZ | 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝: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/復位，POR，WDT 輸入/輸出數(shù):40 程序存儲器容量:96KB（96K x 8） 程序存儲器類型: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 其它名稱:568-9587 |
| ADUC834BCPZ-REEL | 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設(shè)備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數(shù):16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
| ADUC834BS | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.58MHZ 3.3/5V 52MQFP - Bulk 制造商:Analog Devices 功能描述:8BIT MCU +24/16BIT ADC SMD MQFP52 |
發(fā)布緊急采購，3分鐘左右您將得到回復。