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参数资料
型号： MCHC11F1CFNE2
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 8-BIT, EEPROM, MICROCONTROLLER, PQCC68
封装： ROHS COMPLIANT AND HALOGEN FREE, PLASTIC, LCC-68
文件页数： 12/162页
文件大小： 4554K
代理商： MCHC11F1CFNE2
TIMING SYSTEM
MOTOROLA
TECHNICAL DATA
9-3
9.1 Timer Structure
Figure 9-2 shows the capture/compare system block diagram. The port A pin control
block includes logic for timer functions and for general-purpose I/O. For pins PA3,
PA2, PA1, and PA0, this block contains both the edge-detection logic and the control
logic that enables the selection of which edge triggers an input capture. The digital lev-
el on PA[3:0] can be read at any time (read PORTA register), even if the pin is being
used for the input capture function. Pins PA[6:3] are used for either general-purpose
I/O, or as output compare pins. When one of these pins is being used for an output
compare function, it cannot be written directly as if it were a general-purpose output.
Each of the output compare functions (OC[5:2]) is related to one of the port A output
pins. Output compare one (OC1) has extra control logic, allowing it optional control of
any combination of the PA[7:3] pins. The PA7 pin can be used as a general-purpose
I/O pin, as an input to the pulse accumulator, or as an OC1 output pin.
Table 9-1 Timer Summary
XTAL Frequencies
4.0 MHz
8.0 MHz
12.0 MHz
16.0 MHz
Other Rates
1.0 MHz
2.0 MHz
3.0 MHz
4.0 MHz
(E)
Control Bits
1000 ns
500 ns
333 ns
250 ns
(1/E)
PR1, PR0
Main Timer Count Rates
0 0
1 count —
overflow —
1.0
s
65.536 ms
500 ns
32.768 ms
333 ns
21.845 ms
250 ns
16.384 ms
(1/E)
(216/E)
0 1
1 count —
overflow —
4.0
s
262.14 ms
2.0
s
131.07 ms
1.333
s
87.381 ms
1.0
s
65.536 ms
(4/E)
(218/E)
1 0
1 count —
overflow —
8.0
s
524.29 ms
4.0
s
262.14 ms
2.667
s
174.76 ms
2.0
s
131.07 ms
(8/E)
(219/E)
1 1
1 count —
overflow —
16.0
s
1.049 s
8.0
s
524.29 ms
5.333
s
349.52 ms
4.0
s
262.14 ms
(16/E)
(220/E)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相关代理商/技术参数
参数描述
MCHC11F1CFNE2 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MCHC11F1CFNE2R 功能描述:8位微控制器 -MCU 8B MCU 1KRAM 512EE RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MCHC11F1CFNE3 功能描述:8位微控制器 -MCU 8B MCU 1KRAM 512EE RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MCHC11F1CFNE3 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MCHC11F1CFNE3R 功能描述:8位微控制器 -MCU 8B MCU 1KRAM 512EE RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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