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參數資料
| 型號： | MC68HC11K4CFU4 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Technical Summary 8-Bit Microcontroller |
| 中文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 70/80頁 |
| 文件大小： | 420K |
| 代理商： | MC68HC11K4CFU4 |
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MOTOROLA
70
M68HC11 K Series
MC68HC11KTS/D
PEDGE —Pulse Accumulator Edge Control
Refer to
11 Pulse Accumulator
.
Bit 3 —Not implemented
Always reads zero
I4/O5 —Input Capture 4/Output Compare 5
Configure TI4/O5 for input capture or output compare
0 = OC5 enabled
1 = IC4 enabled
RTR[1:0] —Real-Time Interrupt (RTI) Rate
Refer to
10.1 Real-Time Interrupt
.
10.1 Real-Time Interrupt
These rates are a function of the MCU oscillator frequency and the value of the software-accessible
control bits, RTR1 and RTR0. These bits determine the rate at which interrupts are requested by the
RTI system. The RTI system is driven by an E divided by 2
13
rate clock compensated so that it is inde-
pendent of the timer prescaler. The RTR1 and RTR0 control bits select an additional division factor. RTI
is set to its fastest rate by default out of reset and can be changed at any time.
Table 12 Real-Time Interrupt Rates (Period Length)
Period Length
Selected
2
13
÷
E
2
14
÷
Ε
2
15
÷
Ε
2
16
÷
Ε
Period Length
E = 3.0 MHz
2.731 ms
RTR[1:0]
0 0
E = 2.0 MHz
4.096 ms
E = 4.0 MHz
2.048 ms
0 1
8.192 ms
5.461 ms
4.096 ms
1 0
16.384 ms
10.923 ms
8.192 ms
1 1
32.768 ms
21.845 ms
16.383 ms
Table 13 Real-Time Interrupt Rates (Frequency)
Frequency
E = 3.0 MHz
366.211 Hz
RTR[1:0]
0 0
Rate Selected
E
÷
2
13
E
÷2
14
E
÷2
15
E
÷2
16
E = 2.0 MHz
244.141 Hz
E = 4.0 MHz
488.281 Hz
0 1
122.070 Hz
183.105 Hz
244.141 Hz
1 0
61.035 Hz
91.553 Hz
122.070 Hz
1 1
30.518 Hz
45.776 Hz
61.035 Hz
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC68HC11K4FN1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| MC68HC11K4MFN2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT |
| MC68HC11K4MFN3 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller |
| MC68HC11K4MFN4 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT |
| MC68HC11K4MFS2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT |
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