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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)： | 44/72頁 |
| 文件大?。?/td> | 1451K |
| 代理商： | ADUC834 |
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(12 March 2002) REV.
P
rC
ADuC834
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44
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PRELIMINARY TECHNICAL DATA
PWM MODE S OF OPE RAT ION
MODE 0: PWM disblabled
T he PWM is disabled allowing P1.0 and P1.1 be used as nor-
mal.
MODE 1: Single Variable resolution PWM
In this mode both the pulse length and the cycle time (pe-
riod) are programmable in user code allowing the resolution
of the PWM to be variable.
PWM1H/L sets the period of the output waveform. Setting
PWM1H/L to 65536 gives a 16-bit PWM with a maximum
output rate of 192Hz (12.583MHz/65536). Setting
PWM1H/L to 4096 gives a 12-bit PWM with a maximum
output rate of 3072Hz (12.583MHz/4096).Reducing
PWM1H/L reduces the resolution but increases the maxi-
mum output rate of the PWM.
PWM0H/L sets the width of the output waveform as shown
in the diagram below.
P1.0
PWM COUNTER
PWM1H/L
0
PWM0H/L
Figure 36. ADuC834 PWM in Mode 1
MODE 2: T win 8-bit PWM
In this mode both the pulse and cycle time (period) are pro-
grammable however the maximum resolution of the PWM
output is 8-bits.
PWM1L sets the period for both PWM outputs. T ypically this
will be set to 255 (FFh) to give an 8-bit PWM although it is
possible to reduce this as necessary. A value of 100 is loaded
here to give a percentage PWM (i.e. the PWM is accurate to
1%).
T he ouputs of the PWM at P1.0 and P1.1 are shown in the
diagram below. As can be seen the output of PWM0 (P1.0)
goes low when the PWM counter equals PWM0L. T he output
of PWM1 (P1.1) goes high when the PWM counter equals
PWM1H and goes low again when the PWM counter equals
PWM0H. Often PWM1H will be set to 0 so that both outputs
start simultaneously.
P1.1
P1.0
PWM COUNTER
PWM1H
0
PWM1L
PWM0H
PWM0L
Figure 37. PWM Mode 2
MODE 3: T win 16-bit PWM
In this mode the pulse is programmable but the cycle time
(period) is fixed. T he PWM counter is fixed to count from 0
to 65536 giving a fixed 16-bit resolution. T his means that
the maximum output of the PWM is 192Hz.
As shown below while the PWM counter is less than
PWM0H/L then the output of PWM0 (P1.0) is high. Once
the PWM counter equals PWM0H/L then PWM0 (P1.0)
goes low and remains low until the PWM counter is rolls
over.
Similarly while the PWM counter is less than PWM1H/L
then the output of PWM1 (P1.1) is high. Once the PWM
counter equals PWM1H/L then PWM1 (P1.1) goes low and
remains low until the PWM counter is rolls over.
In this mode PWMs must be synchronised. i.e. Both PWM0
(P1.0) and PWM1 (P1.1) go high at the same time.
P1.1
P1.0
PWM COUNTER
PWM1H/L
0
65536
PWM0H/L
Figure 38. PWM Mode 3
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相關代理商/技術參數(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)轉換器:A/D 8x10b 振蕩器型:內部 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)轉換器:- 振蕩器型:內部 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 |
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