参数资料
型号: MC68HC705P6ACP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, DIP-28
文件页数: 64/98页
文件大小: 532K
代理商: MC68HC705P6ACP
MC68HC705P6A Advance Information Data Sheet, Rev. 2.1
Freescale Semiconductor
67
Chapter 12
Central Processor Unit (CPU) Core
12.1 Introduction
The MC68HC705P6A has an 8-K memory map. Therefore, it uses only the lower 13 bits of the address
bus. In the following discussion, the upper three bits of the address bus can be ignored. Also, the STOP
instruction can be modified to place the MCU in either the normal stop mode or the halt mode by means
of a MOR bit. All other instructions and registers behave as described in this section.
12.2 Registers
The MCU contains five registers which are hard-wired within the CPU and are not part of the memory
map. These five registers are shown in Figure 12-1 and are described in the following paragraphs.
Figure 12-1. MC68HC05 Programming Model
12.2.1 Accumulator
The accumulator is a general-purpose 8-bit register as shown in Figure 12-1. The CPU uses the
accumulator to hold operands and results of arithmetic calculations or non-arithmetic operations. The
accumulator is unaffected by a reset of the device.
CONDITION CODE REGISTER
I
ACCUMULATOR
60
A
INDEX REGISTER
71
X
4
52
3
STACK POINTER
SP
14
8
15
9
12
13
10
11
PC
CC
111
11
0
PROGRAM COUNTER
HN
Z
C
HALF-CARRY BIT (FROM BIT 3)
INTERRUPT MASK
NEGATIVE BIT
ZERO BIT
CARRY BIT
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相关代理商/技术参数
参数描述
MC68HC705P6ADW 制造商:Rochester Electronics LLC 功能描述:MCU, 176 BYTES RAM, A/D - Bulk
MC68HC705P6AMDW 功能描述:IC MCU 4.6K OTP 2.1MHZ 28-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 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
MC68HC705P6AMP 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705P6CDW 制造商:Motorola Inc 功能描述:
MC68HC705P6CP 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: