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参数资料
| 型号： | IS80C52-24PL |
| 厂商： | INTEGRATED SILICON SOLUTION INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 6/48页 |
| 文件大小： | 379K |
| 代理商： | IS80C52-24PL |
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IS80C52
IS80C32
14
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC004-1D
11/19/98
ISSI
T2CON:
Timer/Counter 2 Control Register. Bit Addressable.
7
6
54321
0
TF2 EXF2 RCLK TCLK EXEN2
TR2
C/
T2
T2 CP/RL2
RL2
Register Description:
TF2
T2CON.7 Timer 2 overflow flag set by hardware
and cleared by software. TF2 cannot
be set when either RCLK = 1 or TCLK
= 1.
EXF2 T2CON.6 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 causes the CPU to
vector to the Timer 2 interrupt routine.
EXF2 must be cleared by software.
RCLK T2CON.5 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.
TLCK T2CON.4 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.
EXEN2 T2CON.3 Timer 2 external enable flag. When
set, allows a capture or reload to occur
as a result of 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.
TR2
T2CON.2 Software START/STOP control for
Timer 2. A logic 1 starts the Timer.
C/T2 T2CON.1 Timer or Counter select. 0 = Internal
Timer. 1 = External Event Counter
(triggered by falling edge).
CP/RL2 T2CON.0 Capture/Reload flag. When set,
captures occur on negative transitions
at T2EX if EXEN2 = 1. When cleared,
auto-reloads 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.
Notes:
1. Timer 2 Operating Modes
RCLK + TCLKCP/
RL2
RL2 TR2 MODE
0
1
16-Bit Auto-Reload
0
1
16-Bit Capture
1
X
1
Baud Rate Generator
X
0
(Off)
2. User software should not write 1s to reserved bits. These bits
may be used in future products to invoke new features.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IS80C52-24PLI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C52-24PQ | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C52-24PQI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C52-24W | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS80C52-24WI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
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