参数资料
型号: MC68HC711D3MP2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 73/157页
文件大小: 2252K
代理商: MC68HC711D3MP2
Operating Modes and Memory
Data Sheet
MC68HC711D3 — Rev. 2
22
Operating Modes and Memory
MOTOROLA
2.2.2 Expanded Multiplexed Mode
In the expanded-multiplexed mode, the MCU can address up to 64 Kbytes of
address space. High-order address bits are output on the port B pins. Low-order
address bits and the bidirectional data bus are multiplexed on port C. The AS pin
provides the control output used in demultiplexing the low-order address. The R/W
pin is used to control the direction of data transfer on the port C bus.
If this mode is entered out of reset, the EPROM is located at $7000–$7FFF and
vector accesses are from external memory. To be in expanded-multiplexed mode
with EPROM located at $F000–$FFFF, it is necessary to start in single-chip mode,
executing out of EPROM, and then set the MDA bit of the HPRIO register to switch
mode.
NOTE:
R/W, AS, and the high-order address bus (port B) are inputs in single-chip mode.
These inputs may need to be pulled up so that off-chip accesses cannot occur
while the MCU is in single-chip mode.
2.2.3 Special Bootstrap Mode (BOOT)
This special mode is similar to single-chip mode. The resident bootloader program
contains a 256-byte program in a special on-chip read-only memory (ROM). The
user downloads a small program into on-board RAM using the SCI port. Program
control is passed to RAM when an idle line of at least four characters occurs. In this
mode, all interrupt vectors are mapped to RAM (see Table 2-2), so that the user
can set up a jump table, if desired.
Bootstrap mode (BOOT) is entered out of reset if the voltage level on both MODA
and MODB is low. The programming aspect of bootstrap mode, used to program
the one-time programmable ROM (OTPROM) through the MCU, is entered
automatically if IRQ is low and programming voltage is available on the VPP pin.
IRQ should be pulled up while in reset with MODA and MODB configured for
bootstrap mode to prevent unintentional programming of the EPROM.
This versatile mode (BOOT) can be used for test and diagnostic functions on
completed modules and for programming the on-board PROM. The serial receive
logic is initialized by software in the bootloader ROM, which provides program
control for the SCI baud rate and word format. Mode switching to other modes can
occur under program control by writing to the SMOD and MDA bits of the HPRIO
register. Two special bootloader functions allow either an immediate jump-to-RAM
at memory address $0000 or an immediate jump-to-EPROM at $F000.
相关PDF资料
PDF描述
MC68HC711D3S 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP40
MC68HC711D3FN 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
MC68HC711G5CFN 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC84
MC68HC11G7CFN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC84
MC68HC711L6CFN1 OTPROM, MICROCONTROLLER, PQCC68
相关代理商/技术参数
参数描述
MC68HC711D3VFNE2 功能描述:8位微控制器 -MCU 8B OTP 192RAM 2 MHZ 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
MC68HC711E20CFN2 功能描述:IC MCU 20K 2MHZ OTP 52-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C,IrDA,LIN,SPI,UART/USART 外围设备:DMA,PDR,POR,PVD,PWM,温度传感器,WDT 输入/输出数:26 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN,36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND
MC68HC711E20CFN3 功能描述:IC MCU 3MHZ 20K OTP 52-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C,IrDA,LIN,SPI,UART/USART 外围设备:DMA,PDR,POR,PVD,PWM,温度传感器,WDT 输入/输出数:26 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN,36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND
MC68HC711E20CFN4 功能描述:IC MCU 20K OTP 4MHZ 52-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN,SCI,SPI 外围设备:POR,PWM,温度传感器,WDT 输入/输出数:21 程序存储器容量:40KB(20K x 16) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HC711E20CFU3 制造商:Rochester Electronics LLC 功能描述:8BIT, 20K EPROM, 768RAM. - Bulk 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: