- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362685 > EM78P5830DQ (ELAN Microelctronics Corp .) 8-BIT MICRO-CONTROLLER PDF資料下載
參數(shù)資料
| 型號： | EM78P5830DQ |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 8-BIT MICRO-CONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數(shù)： | 34/43頁 |
| 文件大?。?/td> | 396K |
| 代理商： | EM78P5830DQ |
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頁當(dāng)前第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
EM785830AA
8-bit Micro-controller
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to be changed without notice.
12/1/2004 V1.6
Period
Duty Cycle
DT1 = TMR1
PRD1 = TMR1
Fig.13 The Output Timing of the PWM
(2) Increment Timer Counter ( TMRX: TMR1H/TWR1L or TMR2H/TWR2L )
TMRX are ten-bit clock counters with programmable prescalers. They are designed for the PWM module
as baud rate clock generators. TMRX can be read, written, and cleared at any reset conditions. If
employed, they can be turned down for power saving by setting T1EN bit [PWMCON<4>] or T2EN bit
[PWMCON<5>] to 0.
(3) PWM Period ( PRDX : PRD1 or PRD2 )
The PWM period is defined by writing to the PRDX register. When TMRX is equal to PRDX, the
following events occur on the next increment cycle:
TMRX is cleared.
The PWMX pin is set to 1.
The PWM duty cycle is latched from DT1/DT2 to DTL1/DTL2.
< Note > The PWM output will not be set, if the duty cycle is 0;
The PWMXIF pin is set to 1.
The following formula describes how to calculate the PWM period:
PERIOD = (PRDX + 1) * 4 * (1/Fosc) * (TMRX prescale value )
Where Fosc is system clock
(4) PWM Duty Cycle ( DTX: DT1H/ DT1L and DT2H/ DT2L; DTL: DL1H/DL1L and DL2H/DL2L )
The PWM duty cycle is defined by writing to the DTX register, and is latched from DTX to DLX while
TMRX is cleared. When DLX is equal to TMRX, the PWMX pin is cleared. DTX can be loaded at any
time. However, it cannot be latched into DTL until the current value of DLX is equal to TMRX.
The following formula describes how to calculate the PWM duty cycle:
Duty Cycle = (DTX) * (1/Fosc) * (TMRX prescale value )
(5) PWM Programming Procedures/Steps
Load PRDX with the PWM period.
(1) Load DTX with the PWM Duty Cycle.
(2) Enable interrupt function by writing IOCF PAFE0, if required.
(3) Set PWMX pin to be output by writing a desired value to IOCC PAGE0.
(4) Load a desired value to R5 PAGE3 with TMRX prescaler value and enable both PWMX and TMRX.
(6) Timer
Timer1 (TMR1) and Timer2 (TMR2) (TMRX) are 10-bit clock counters with programmable prescalers,
respectively. They are designed for the PWM module as baud rate clock generators. TMRX can be read,
written, and cleared at any reset conditions.
The figure in the next page shows TMRX block diagram. Each signal and block are described as follows:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EM785840 | 8-BIT MICRO-CONTROLLER |
| EM785840M | 8-BIT MICRO-CONTROLLER |
| EM785840P | 8-BIT MICRO-CONTROLLER |
| EM785841 | 8-BIT MICRO-CONTROLLER |
| EM785841M | 8-BIT MICRO-CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM7A8620 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:Voice over IP |
| EM7G | 制造商:GULFSEMI 制造商全稱:Gulf Semiconductor 功能描述:ULTRAFAST EFFICIENT PLASTIC SILICON RECTIFIER VOLTAGE： 1000V CURRENT： 1.0A |
| EM800 | 制造商:EDI 制造商全稱:Electronic devices inc. 功能描述:HIGH VOLTAGE HIGH CURRENT MINIATURE RECTIFIERS |
| EM8000EHP | 制造商:JDSU 制造商全稱:JDS Uniphase Corporation 功能描述:The industrya??s most compact 100 G test solution |
| EM800-DCM | 制造商:MRV 制造商全稱:MRV 功能描述:LambdaDriver Dispersion Compensation Module (EM800/1600-DCM and DCMD) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。