欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: MC68HC05C9A
廠商: Motorola, Inc.
元件分類: 8位微控制器
英文描述: 8-Bit Microcontroller(8位微控制器)
中文描述: 8位微控制器(8位微控制器)
文件頁數: 54/160頁
文件大小: 783K
代理商: MC68HC05C9A
L
G
R
Input/Output Ports
General Release Specification
MC68HC05C9A
Rev. 4.0
54
Input/Output Ports
MOTOROLA
Figure 7-1. Port A I/O Circuit
7.4 Port B
Port B is an 8-bit bidirectional port. The port B data register is at $0001
and the data direction register (DDR) is at $0005. The contents of the
port B data register are indeterminate at initial powerup and must be
initialized by user software. Reset does not affect the data registers, but
clears the data direction registers, thereby returning the ports to inputs.
Writing a one to a DDR bit sets the corresponding port pin to output
mode. Each of the port B pins has an optional external interrupt
capability that can be enabled by mask option.
The interrupt option also enables a pullup device when the pin is
configured as an input. The edge or edge- and level-sensitivity of the
IRQ pin will also pertain to the enabled port B pins. Care needs to be
taken when using port B pins that have the pullup enabled. Before
switching from an output to an input, the data should be preconditioned
to a one to prevent an interrupt from occurring. The port B logic is shown
in
Figure 7-2
.
DATA DIRECTION
REGISTER BIT
LATCHED OUTPUT
DATA BIT
I/O
PIN
INPUT
REG
BIT
INPUT
I/O
OUTPUT
INTERNAL
HC05
CONNECTIONS
相關PDF資料
PDF描述
MC68HCL05C9A 8-Bit Microcontroller(8位微控制器)
MC68HSC05C9A 8-Bit Microcontroller(8位微控制器)
MC68HC05F2 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05F6 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05K3 8-Bit Microcontroller Units (MCU).(8位微控制器)
相關代理商/技術參數
參數描述
MC68HC05C9AB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFN 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AMB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AMFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
主站蜘蛛池模板: 伊宁市| 灵川县| 民勤县| 汉沽区| 大冶市| 漯河市| 黔南| 嘉义市| 荥阳市| 仙游县| 乐安县| 罗源县| 措美县| 大足县| 靖江市| 辛集市| 安丘市| 敖汉旗| 万载县| 墨竹工卡县| 泸西县| 玉田县| 博罗县| 承德县| 蛟河市| 渝中区| 绥芬河市| 武山县| 洛川县| 长治县| 海阳市| 双峰县| 米脂县| 沽源县| 阿克陶县| 静乐县| 绵阳市| 梧州市| 河津市| 牟定县| 通榆县|