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零件编号
产品描述 (功能)
P89C58UFAA 查看數據表(PDF) - Philips Electronics
零件编号
产品描述 (功能)
生产厂家
P89C58UFAA
80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
Philips Electronics
P89C58UFAA Datasheet PDF : 32 Pages
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Philips Semiconductors
80C51 8-bit microcontroller family
4K/8K/16K/32K Flash
Product specification
89C51/89C52/89C54/89C58
OSC
÷
12
T2 PIN
C/T2 = 0
C/T2 = 1
TRANSITION
DETECTOR
CONTROL
TR2
RELOAD
TL2
(8-BITS)
TH2
(8-BITS)
RCAP2L
RCAP2H
T2EX PIN
CONTROL
EXEN2
Figure 4. Timer 2 in Auto-Reload Mode (DCEN = 0)
(DOWN COUNTING RELOAD VALUE)
FFH
FFH
TF2
EXF2
TIMER 2
INTERRUPT
SU00067
TOGGLE
EXF2
OSC
÷
12
C/T2 = 0
T2 PIN
C/T2 = 1
OVERFLOW
TL2
TH2
TF2
CONTROL
TR2
RCAP2L
RCAP2H
(UP COUNTING RELOAD VALUE)
Figure 5. Timer 2 Auto Reload Mode (DCEN = 1)
COUNT
DIRECTION
1 = UP
0 = DOWN
T2EX PIN
INTERRUPT
SU00730
1999 Oct 27
11
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