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參數資料
| 型號： | W77E516F-25 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁數： | 59/85頁 |
| 文件大?。?/td> | 596K |
| 代理商： | W77E516F-25 |
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Preliminary W77E516
Publication Release Date: August 16, 2002
- 59 -
Revision A1
While its basic functionality is maintained, it no longer has control over its overflow flag TF1 and the
enable bit TR1. Timer 1 can still be used as a timer/counter and retains the use of GATE and INT1
pin. In this condition it can be turned on and off by switching it out of and into its own Mode 3. It can
also be used as a baud rate generator for the serial port.
1/4
1/12
T0M = CKCON.3
1
Interrupt
C/T = TMOD.2
0
T0 = P3.4
TH0
TL0
TR0 = TCON.4
GATE = TMOD.3
TR1 = TCON.6
INT0 = P3.2
7
0
TF1
7
0
Interrupt
TF0
0
1
Clock Source
Mode input
div. by 4 osc/1
div. by 64 osc/16
div. by 1024 osc/256
Figure 13. Timer/Counter 0 Mode 3
Timer/Counter 2
Timer/Counter 2 is a 16 bit up/down counter which is configured by the T2MOD register and controlled
by the T2CON register. Timer/Counter 2 is equipped with a capture/reload capability. As with the Timer
0 and Timer 1 counters, there exists considerable flexibility in selecting and controlling the clock, and in
defining the operating mode. The clock source for Timer/Counter 2 may be selected for either the
external T2 pin (C/T2 = 1) or the crystal oscillator, which is divided by 12 or 4 (C/T2 = 0). The clock
is then enabled when TR2 is a 1, and disabled when TR2 is a 0. The modes available on Timer 2 are
described below.
MODE
RCLK+TCLK
CP/RL2
T2OE
Auto-reload Mode
0
0
0
Capture Mode
0
1
X
Baud Rate Generator
1
X
0
Programmable Clock Out
X
0
1
Capture Mode
The capture mode is enabled by setting the CP/RL2 bit in the T2CON register to a 1. In the
capture mode, Timer/Counter 2 serves as a 16 bit up counter. When the counter rolls over from
FFFFh to 0000h, the TF2 bit is set, which will generate an interrupt request. If the EXEN2 bit is set,
then a negative transition of T2EX pin will cause the value in the TL2 and TH2 register to be
captured by the RCAP2L and RCAP2H registers. This action also causes the EXF2 bit in T2CON to
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| W77E516F-40 | 8-BIT MICROCONTROLLER |
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| W77E516P-40 | 8-BIT MICROCONTROLLER |
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相關代理商/技術參數 |
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| W77E516F-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516P-25 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516P-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E532 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| W77E532_07 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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