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參數(shù)資料
| 型號： | P8C15416Y-12 |
| 英文描述： | IC-8-BIT CMOS CPU |
| 中文描述： | 集成電路8位CMOS處理器 |
| 文件頁數(shù)： | 10/25頁 |
| 文件大?。?/td> | 154K |
| 代理商： | P8C15416Y-12 |
80C32/80C52
10
Rev. I
–
September 18, 1998
T2
0
1
TR2
T2CON.2
C/T2
T2CON.1
OSC
12
T2EX
EXF2
T2CON.6
RCAP2L
RCAP2H
TL2
(8 bits)
TH2
(8 bits)
TF2
T2CON.7
EXEN2
T2CON.3
Timer 2
Interrupt
Request
Overflow
Figure 7. Timer 2 in Capture Mode
In the auto-reload mode there are again two options, which are selected by bit EXEN2 in T2CON.If EXEN2 = 0, then
when Timer 2 rolls over it does not only set TF2 but also causes the Timer 2 register to be reloaded with the 16 bit value
in registers RCAP2L and RCAP2H, which are preset by software. If EXEN2 = 1, then Timer 2 still does the above,
but with the added feature that a 1-to-0 transition at external input T2EX will also trigger the 16 bit reload and set EXF2.
The auto-reload mode is illustrated in Figure 8.
T2
0
1
TR2
T2CON.2
C/T2
T2CON.1
OSC
12
T2EX
EXF2
T2CON.6
RCAP2L
RCAP2H
TL2
(8 bits)
TH2
(8 bits)
TF2
T2CON.7
EXEN2
T2CON.3
Timer 2
Interrupt
Request
Overflow
Figure 8. Timer in Auto–Reload Mode
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