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| 型号： | MC68HC705JB4P |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP28 |
| 封装： | PLASTIC, DIP-28 |
| 文件页数： | 56/134页 |
| 文件大小： | 1237K |
| 代理商： | MC68HC705JB4P |
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GENERAL RELEASE SPECIFICATION
February 24, 1999
MOTOROLA
CENTRAL PROCESSING UNIT
MC68HC05JB4
3-2
REV 2
3.2
ACCUMULATOR (A)
The accumulator is a general purpose 8-bit register as shown in Figure 3-1. The
CPU uses the accumulator to hold operands and results of arithmetic calculations
or non-arithmetic operations. The accumulator is not affected by a reset of the
device.
3.3
INDEX REGISTER (X)
The index register shown in Figure 3-1 is an 8-bit register that can perform two
functions:
Indexed addressing
Temporary storage
In indexed addressing with no offset, the index register contains the low byte of
the operand address, and the high byte is assumed to be $00. In indexed
addressing with an 8-bit offset, the CPU nds the operand address by adding the
index register content to an 8-bit immediate value. In indexed addressing with a
16-bit offset, the CPU nds the operand address by adding the index register
content to a 16-bit immediate value.
The index register can also serve as an auxiliary accumulator for temporary
storage. The index register is not affected by a reset of the device.
3.4
STACK POINTER (SP)
The stack pointer shown in Figure 3-1 is a 16-bit register. In MCU devices with
memory space less than 64k-bytes the unimplemented upper address lines are
ignored. The stack pointer contains the address of the next free location on the
stack. During a reset or the reset stack pointer (RSP) instruction, the stack pointer
is set to $00FF. The stack pointer is then decremented as data is pushed onto the
stack and incremented as data is pulled off the stack.
When accessing memory, the ten most signicant bits are permanently set to
0000000011. The six least signicant register bits are appended to these ten xed
bits to produce an address within the range of $00FF to $00C0. Subroutines and
interrupts may use up to 64($C0) locations. If 64 locations are exceeded, the
stack pointer wraps around and overwrites the previously stored information. A
subroutine call occupies two locations on the stack and an interrupt uses ve
locations.
3.5
PROGRAM COUNTER (PC)
The program counter shown in Figure 3-1 is a 16-bit register. In MCU devices
with memory space less than 64k-bytes the unimplemented upper address lines
are ignored. The program counter contains the address of the next instruction or
operand to be fetched.
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| MC68HC705JJ7CDW | 功能描述:IC MCU 8BIT 20-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 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 |
| MC68HC705JP7CDW | 功能描述:IC MCU 8BIT 28-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 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 |
| MC68HC705JP7CP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68HC705K1CDW | 制造商:Motorola Inc 功能描述: |
| MC68HC705KJ1CDW | 功能描述:8位微控制器 -MCU 8 Bit 4MHz 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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