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(shù)資料
型號(hào): MC68C912B32FU8
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 16-Bit Microcontroller
中文描述: 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁(yè)數(shù): 15/128頁(yè)
文件大?。?/td> 748K
代理商: MC68C912B32FU8
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)當(dāng)前第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)
MC68HC912B32
MC68HC912B32TS/D
MOTOROLA
15
3.4 Port Signals
The MC68HC912B32 incorporates eight ports which are used to control and access the various device
subsystems. When not used for these purposes, port pins may be used for general-purpose I/O. In ad-
dition to the pins described below, each port consists of a data register which can be read and written
at any time, and, with the exception of port AD and PE[1:0], a data direction register which controls the
direction of each pin. After reset all port pins are configured as input.
3.4.1 Port A
Port A pins are used for address and data in expanded modes. The port data register is not in the ad-
dress map during expanded and peripheral mode operation. When it is in the map, port A can be read
or written at anytime.
Register DDRA determines whether each port A pin is an input or output. DDRA is not in the address
map during expanded and peripheral mode operation. Setting a bit in DDRA makes the corresponding
bit in port A an output; clearing a bit in DDRA makes the corresponding bit in port A an input. The default
reset state of DDRA is all zeros.
When the PUPA bit in the PUCR register is set, all port A input pins are pulled up internally by an active
pull-up device. This bit has no effect if the port is being used in expanded modes as the pull-ups are
inactive.
Setting the RDPA bit in register RDRIV causes all port A outputs to have reduced drive level. RDRIV
can be written once after reset. RDRIV is not in the address map in peripheral mode. Refer to
6 Bus
Control and Input/Output
.
3.4.2 Port B
Port B pins are used for address and data in expanded modes. The port data register is not in the ad-
dress map during expanded and peripheral mode operation. When it is in the map, port B can be read
or written at anytime.
Register DDRB determines whether each port B pin is an input or output. DDRB is not in the address
map during expanded and peripheral mode operation. Setting a bit in DDRB makes the corresponding
bit in port B an output; clearing a bit in DDRB makes the corresponding bit in port B an input. The default
reset state of DDRB is all zeros.
When the PUPB bit in the PUCR register is set, all port B input pins are pulled up internally by an active
pull-up device. This bit has no effect if the port is being used in expanded modes as the pull-ups are
inactive.
Setting the RDPB bit in register RDRIV causes all port B outputs to have reduced drive level. RDRIV
can be written once after reset. RDRIV is not in the address map in peripheral mode. Refer to
6 Bus
Control and Input/Output
.
3.4.3 Port E
Port E pins operate differently from port A and B pins. Port E pins are used for bus control signals and
interrupt service request signals. When a pin is not used for one of these specific functions, it can be
used as general-purpose I/O. However, two of the pins (PE[1:0]) can only be used for input, and the
states of these pins can be read in the port data register even when they are used for IRQ and XIRQ.
The PEAR register determines pin function, and register DDRE determines whether each pin is an input
or output when it is used for general-purpose I/O. PEAR settings override DDRE settings. Because
PE[1:0] are input-only pins, only DDRE[7:2] have effect. Setting a bit in the DDRE register makes the
corresponding bit in port E an output; clearing a bit in the DDRE register makes the corresponding bit
in port E an input. The default reset state of DDRE is all zeros.
相關(guān)PDF資料
PDF描述
MC68B912B32FU8 16-Bit Microcontroller
MC68C912B32CFU8 16-Bit Microcontroller
MC68CK338 Highly Integrated, Low-Power, 32-Bit Microcontroller
MC68EC060 32-Bit Microprocessors.(32位微處理器)
MC68EN360RC25V QUad Integrated Communications Controller Users Manual
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68CK16Z1 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series
MC68CK16Z1CAG16 功能描述:16位微控制器 - MCU 16BIT 1KRAM 32KHZ CRYSTAL RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MC68CK16Z1CAG16 制造商:Freescale Semiconductor 功能描述:Microcontroller
MC68CK16Z1CFC16 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series
MC68CK16Z1CPV16 功能描述:16位微控制器 - MCU 16 Bit 16MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
主站蜘蛛池模板: 宣汉县| 垦利县| 莱芜市| 永丰县| 钟山县| 邢台县| 固原市| 湄潭县| 广南县| 宾阳县| 濮阳县| 项城市| 鹤岗市| 福海县| 汉阴县| 丰城市| 资兴市| 青州市| 承德市| 四川省| 兰西县| 长宁县| 乌拉特前旗| 当雄县| 邓州市| 临武县| 德州市| 白玉县| 普兰县| 繁峙县| 岱山县| 长沙市| 贵港市| 云梦县| 中方县| 阳城县| 黔西| 中江县| 诏安县| 杭锦后旗| 贵州省|