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參數(shù)資料
| 型號： | SAF-C513A-HN |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, EEPROM, 8 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 73/128頁 |
| 文件大?。?/td> | 1837K |
| 代理商： | SAF-C513A-HN |
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Semiconductor Group
6-16
On-Chip Peripheral Units
6.2.1 Timer/Counter 0 and 1
Timer / counter 0 and 1 of the SAB-C511/513 family components are fully compatible with timer /
counter 0 and 1 of the 8051 microcontroller and can be used in the same four operating modes:
Mode 0: 8-bit timer/counter with a divide-by-32 prescaler
Mode 1: 16-bit timer/counter
Mode 2: 8-bit timer/counter with 8-bit auto-reload
Mode 3: Timer/counter 0 is split into one 8-bit timer/counter and one 8-bit timer when programmed
to this mode. Timer/counter 1 set to this mode will simply hold its count. The effect is the
same as setting TR1 = 0, disabling the counter.
The external inputs INT0 and INT1 can be programmed to function as a gate for timer/counters 0
and 1 to facilitate pulse width measurements.
Each timer consists of two 8-bit registers (TH0 and TL0 for timer/counter 0, TH1 and TL1 for timer/
counter 1) which may be combined to one timer configuration depending on the mode that is
established. The functions of the timers are controlled by two special function registers TCON and
TMOD.
In the following descriptions the symbols TH0 and TL0 are used to specify the high-byte and the
low-byte of timer 0 (TH1 and TL1 for timer 1, respectively). The operating modes are described and
shown for timer 0. If not explicity noted, this applies also to timer 1.
Special Function Register TCON (Address 88H)
Reset Value : 00H
Bit
Function
TR0
Timer 0 run control bit.
Set/cleared by software to turn timer/counter 0 ON/OFF.
TF0
Timer 0 overflow flag. Set by hardware on timer/counter overflow.
Cleared by hardware when processor vectors to interrupt routine.
TR1
Timer 1 run control bit.
Set/cleared by software to turn timer/counter 1 ON/OFF.
TF1
Timer 1 overflow flag. Set by hardware on timer/counter overflow.
Cleared by hardware when processor vectors to interrupt routine.
TF1
TR1
TF0
TR0
88H
TCON
Bit No.
7
65
43
21
0
MSB
LSB
IE1
IT1
IE0
IT0
These bits are not used in controlling timer/counter 0 and 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAF-C513AO | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-bit CMOS Microcontroller |
| SAF-C515 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAF-C515-1R24M | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAF-C515-1RM | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAF-C515A-4R | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
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