- 您现在的位置：买卖IC网 > PDF目录69331 > SAB-C515C-LM (INFINEON TECHNOLOGIES AG) 8-BIT, 10 MHz, MICROCONTROLLER, PQFP80 PDF资料下载
参数资料
| 型号： | SAB-C515C-LM |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 10 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | PLASTIC, MQFP-80 |
| 文件页数： | 35/98页 |
| 文件大小： | 1117K |
| 代理商： | SAB-C515C-LM |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页当前第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页
C515C
Data Sheet
36
2003-02
Timer 2 Operating Modes
The timer 2, which is a 16-bit-wide register, can operate as timer, event counter, or gated
timer. A roll-over of the count value in TL2/TH2 from all 1’s to all 0’s sets the timer
overflow flag TF2 in SFR IRCON, which can generate an interrupt. The bits in register
T2CON are used to control the timer 2 operation.
Timer Mode: In timer function, the count rate is derived from the oscillator frequency. A
prescaler offers the possibility of selecting a count rate of 1/6 or 1/12 of the oscillator
frequency.
Gated Timer Mode: In gated timer function, the external input pin T2 (P1.7) functions as
a gate to the input of timer 2. If T2 is high, the internal clock input is gated to the timer.
T2 = 0 stops the counting procedure. This facilitates pulse width measurements. The
external gate signal is sampled once every machine cycle.
Event Counter Mode: In the event counter function. the timer 2 is incremented in
response to a 1-to-0 transition at its corresponding external input pin T2 (P1.7). In this
function, the external input is sampled every machine cycle. Since it takes two machine
cycles (12 oscillator periods) to recognize a 1-to-0 transition, the maximum count rate is
1/12 of the oscillator frequency. There are no restrictions on the duty cycle of the external
input signal, but to ensure that a given level is sampled at least once before it changes,
it must be held for at least one full machine cycle.
Reload of Timer 2: Two reload modes are selectable:
In mode 0, when timer 2 rolls over from all 1’s to all 0’s, it not only sets TF2 but also
causes the timer 2 registers to be loaded with the 16-bit value in the CRC register, which
is preset by software.
In mode 1, a 16-bit reload from the CRC register is caused by a negative transition at the
corresponding input pin P1.5/T2EX. This transition will also set flag EXF2 if bit EXEN2
in SFR IEN1 has been set.
相关PDF资料 |
PDF描述 |
|---|---|
| SAB-XC164CM-8F40F | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64 |
| SAB-XC164CM-4F40F | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64 |
| SAB-XC164CM-8F20F | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64 |
| SAB-XC164KM-4F40F | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64 |
| SAB-XC164KM-4F20F | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SAB-C515-L24M | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAB-C515-LM | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAB-C517A | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-bit CMOS MICROCONTROLLER |
| SAB-C517A-4R24M | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAB-C517A-4RM | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
发布紧急采购，3分钟左右您将得到回复。