參數(shù)資料
型號(hào)： P80C51SFPN
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless low voltage 2.7V.5.5V, low power, high speed 33 MHz
中文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP40
封裝： 0.600 INCH, PLASTIC, MO-015, SOT129-1, DIP-40
文件頁數(shù)： 10/38頁
文件大?。?/td> 350K
代理商： P80C51SFPN
Philips Semiconductors
Product specification
80C51/87C51/80C31
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
2000 Jan 20
10
(MSB)
(LSB)
Symbol
Position
Name and Significance
TF2
T2CON.7
Timer 2 overflow flag set by a Timer 2 overflow and must be cleared by software. TF2 will not be set
when either RCLK or TCLK = 1.
Timer 2 external flag set when either a capture or reload is caused by a negative transition on T2EX and
EXEN2 = 1. When Timer 2 interrupt is enabled, EXF2 = 1 will cause the CPU to vector to the Timer 2
interrupt routine. EXF2 must be cleared by software. EXF2 does not cause an interrupt in up/down
counter mode (DCEN = 1).
Receive clock flag. When set, causes the serial port to use Timer 2 overflow pulses for its receive clock
in modes 1 and 3. RCLK = 0 causes Timer 1 overflow to be used for the receive clock.
Transmit clock flag. When set, causes the serial port to use Timer 2 overflow pulses for its transmit clock
in modes 1 and 3. TCLK = 0 causes Timer 1 overflows to be used for the transmit clock.
Timer 2 external enable flag. When set, allows a capture or reload to occur as a result of a negative
transition on T2EX if Timer 2 is not being used to clock the serial port. EXEN2 = 0 causes Timer 2 to
ignore events at T2EX.
Start/stop control for Timer 2. A logic 1 starts the timer.
Timer or counter select. (Timer 2)
0 = Internal timer (OSC/12)
1 = External event counter (falling edge triggered).
Capture/Reload flag. When set, captures will occur on negative transitions at T2EX if EXEN2 = 1. When
cleared, auto-reloads will occur either with Timer 2 overflows or negative transitions at T2EX when
EXEN2 = 1. When either RCLK = 1 or TCLK = 1, this bit is ignored and the timer is forced to auto-reload
on Timer 2 overflow.
EXF2
T2CON.6
RCLK
T2CON.5
TCLK
T2CON.4
EXEN2
T2CON.3
TR2
C/T2
T2CON.2
T2CON.1
CP/RL2
T2CON.0
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2
CP/RL2
SU00728
Figure 1. Timer/Counter 2 (T2CON) Control Register
OSC
÷
12
C/T2 = 0
C/T2 = 1
TR2
Control
TL2
(8-bits)
TH2
(8-bits)
TF2
RCAP2L
RCAP2H
EXEN2
Control
EXF2
Timer 2
Interrupt
T2EX Pin
Transition
Detector
T2 Pin
Capture
SU00066
Figure 2. Timer 2 in Capture Mode
相關(guān)PDF資料
PDF描述
P80C51X2 RY Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 24V; Power: 1W; On/Off Pin; 1kVDC Isolation; UL94V-0 Package Material; Optional Continuous Short Circuit Protected; Internal linear regulator; Efficiency to 70%
P80C51FA-5B 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz
P80C51FA-5N 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz
P80C51FA-IA 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz
P80C51FA-IB 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P80C51T-12 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P80C51T-16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P80C51T-20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P80C51T-25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P80C51T-30 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
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