参数资料
型号: 89C52
厂商: Integrated Silicon Solution, Inc.
英文描述: CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
中文描述: CMOS单芯片的8位单片机,带有8的快闪记忆体
文件页数: 18/50页
文件大小: 425K
代理商: 89C52
IS89C52
18
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC013-1C
11/21/98
ISSI
DIVIDE 12
OSC
TL2
(8 BITS)
TH2
(8 BITS)
TIMER 2
INTERRUPT
RCAP2L
TF2
EXF2
CONTROL
CONTROL
RELOAD
C/T2 = 0
C/T2 = 1
T2 PIN
TR2
EXEN2
T2EX PIN
TRANSITION
DETECTOR
RCAP2H
Figure 13. Timer 2 in Auto-Reload Mode
Figure 14. Timer 2 in Baud Rate Generator Mode
DIVIDE 2
DIVIDE 2
SMOD
RCLK
RX CLOCK
TX CLOCK
TIMER 1
OVERFLOW
DIVIDE 16
DIVIDE 16
EXF2
OSC
TL2
(8 BITS)
TH2
(8 BITS)
RCAP2L
CONTROL
TR2
CONTROL
EXEN2
C/T2 = 0
C/T2 = 1
T2 PIN
T2EX PIN
TRANSITION
DETECTOR
NOTE: OSC FREQ.
IS DIV BY 2, NOT 12
TIMER 2
INTERRUPT
RCAP2H
TCLK
"0"
"0"
"0"
"1"
"1"
"1"
RELOAD
Note:
T2EX can be used as an additional external interrupt.
Figure 12. Timer 2 In Capture Mode
DIVIDE 12
OSC
TL2
(8 BITS)
TH2
(8 BITS)
TIMER 2
INTERRUPT
RCAP2L
TF2
EXF2
CONTROL
CONTROL
CAPTURE
C/T2 = 0
C/T2 = 1
T2 PIN
TR2
EXEN2
T2EX PIN
TRANSITION
DETECTOR
RCAP2H
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