參數(shù)資料
型號(hào)： TS80C51RA2
廠商： Atmel Corp.
英文描述： GT 47C 7#12 40#16 PIN PLUG
中文描述： 高性能8位微控制器
文件頁(yè)數(shù)： 19/74頁(yè)
文件大小： 903K
代理商： TS80C51RA2
Rev. C - 06 March, 2001
19
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
Figure 5. Auto-Reload Mode Up/Down Counter (DCEN = 1)
6.4.2. Programmable Clock-Output
In the clock-out mode, timer 2 operates as a 50%-duty-cycle, programmable clock generator (See Figure 6) . The
input clock increments TL2 at frequency F
OSC
/2. The timer repeatedly counts to overflow from a loaded value.
At overflow, the contents of RCAP2H and RCAP2L registers are loaded into TH2 and TL2. In this mode, timer
2 overflows do not generate interrupts. The formula gives the clock-out frequency as a function of the system
oscillator frequency and the value in the RCAP2H and RCAP2L registers :
For a 16 MHz system clock, timer 2 has a programmable frequency range of 61 Hz
(F
OSC
/2
16)
to 4 MHz (F
OSC
/4). The generated clock signal is brought out to T2 pin (P1.0).
Timer 2 is programmed for the clock-out mode as follows:
Set T2OE bit in T2MOD register.
Clear C/T2 bit in T2CON register.
Determine the 16-bit reload value from the formula and enter it in RCAP2H/RCAP2L registers.
Enter a 16-bit initial value in timer registers TH2/TL2. It can be the same as the reload value or a different
one depending on the application.
To start the timer, set TR2 run control bit in T2CON register.
(DOWN COUNTING RELOAD VALUE)
FFh
(8-bit)
(8-bit)
C/T2
T2CONreg
TF2
TR2
T2
EXF2
TH2
(8-bit)
TL2
(8-bit)
RCAP2H
(8-bit)
RCAP2L
(8-bit)
FFh
TOGGLE
(UP COUNTING RELOAD VALUE)
TIMER 2
INTERRUPT
XTAL1
:
12
F
OSC
F
XTAL
0
1
T2CONreg
T2CONreg
T2CONreg
T2EX:
if DCEN=1, 1=UP
if DCEN=1, 0=DOWN
if DCEN = 0, up counting
(:6 in X2 mode)
Clock
OutFrequency
–
RCAP
2
H
4
65536
–
RCAP
2
L
(
)
×
--------------------------------------------------------------------------------------
=
相關(guān)PDF資料
PDF描述
TS80C51RA2-LCAB High Performance 8-bit Microcontrollers
TS80C51RA2-LCAD High Performance 8-bit Microcontrollers
TS80C51RA2-LCAR High Performance 8-bit Microcontrollers
TS80C51RA2-LCBB High Performance 8-bit Microcontrollers
TS80C51RA2-LCBD High Performance 8-bit Microcontrollers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS80C51RA2_02 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontroller
TS80C51RA2_06 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller
TS80C51RA2_08 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontroller
TS80C51RA-20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TS80C51RA24 功能描述:IC MPU 8-BIT 5V 24MHZ EXT 44MQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:80C 標(biāo)準(zhǔn)包裝:96 系列:PIC® 16F 核心處理器:PIC 芯體尺寸:8-位 速度:20MHz 連通性:I²C，SPI 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):11 程序存儲(chǔ)器容量:3.5KB（2K x 14） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:128 x 8 電壓 - 電源 (Vcc/Vdd):2.3 V ~ 5.5 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 ~ 125°C 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 包裝:管件
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*