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参数资料
| 型号： | TS80C32X2-LIA |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 30 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 5/55页 |
| 文件大小： | 596K |
| 代理商： | TS80C32X2-LIA |
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13
TS8xCx2X2
4184I–8051–02/08
Figure 4. Auto-reload Mode Up/Down Counter (DCEN = 1)
Programmable Clock-output
In the clock-out mode, timer 2 operates as a 50%-duty-cycle, programmable clock gen-
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
(FOSC/216) to 4 MHz (FOSC/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.
It is possible to use timer 2 as a baud rate generator and a clock generator simulta-
neously. For this configuration, the baud rates and clock frequencies are not
independent since both functions use the values in the RCAP2H and RCAP2L registers.
(DOWN COUNTING RELOAD
C/T2
TF2
TR2
T2
EXF2
TH2
(8-bit)
TL2
(8-bit)
RCAP2H
(8-bit)
RCAP2L
(8-bit)
FFh
(8-bit)
FFh
(8-bit)
TOGGL
(UP COUNTING RELOAD VALUE)
TIMER 2
INTERRUPT
XTAL1
:12
FOSC
FXTAL
0
1
T2CONreg
T2EX:
if DCEN=1, 1=UP
if DCEN=1, 0=DOWN
if DCEN = 0, up counting
(:6 in X2 mode)
Clock
OutFrequency
–
F
osc
4
65536 RCAP2H
–
RCAP
2L
(
)
×
-----------------------------------------------------------------------------------------
=
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TS80C32X2-LIAB | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
| TS80C32X2-LIAD | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
| TS80C32X2-LIAR | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
| TS80C32X2-LIB | 功能描述:IC MCU 8BIT 30/20MHZ 44-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:80C 标准包装:1,500 系列:AVR® ATtiny 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C，LIN，SPI，UART/USART，USI 外围设备:欠压检测/复位，POR，PWM，温度传感器，WDT 输入/输出数:16 程序存储器容量:8KB（4K x 16） 程序存储器类型:闪存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:带卷 (TR) |
| TS80C32X2-LIBB | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
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