參數(shù)資料
型號: MC68HC705G1FU
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP64
封裝: QFP-64
文件頁數(shù): 45/124頁
文件大小: 732K
代理商: MC68HC705G1FU
MC68HC05G1
MOTOROLA
3-1
MEMORY AND REGISTERS
3
MEMORY AND REGISTERS
This section describes the organization of the on-chip memory.
3.1
Memory Map
The CPU can address 16K-bytes of memory space. The ROM portion of memory holds the
program instructions, xed data, user-dened vectors, and interrupt service routines. The RAM
portion of memory holds variable data. I/O registers are memory-mapped so that the CPU can
access their locations in the same way that it accesses all other memory locations. Figure 3-1
shows the Memory Map for the MC68HC05G1/
MC68HC705G1.
3.2
Input/Output Section
The rst 48 addresses of memory space, $0000-$002F, are the I/O section. These are the
addresses of the I/O control registers, status registers, and data registers.
3.3
RAM
The 176 addresses from $0050-$00FF are RAM locations. The CPU uses the top 64 RAM
addresses, $00C0-$00FF, as the stack. Before processing an interrupt, the CPU uses ve bytes
of the stack to save the contents of the CPU registers. During a subroutine call, the CPU uses two
bytes of the stack to store the return address. The stack pointer decrements during pushes and
increments during pulls.
Note:
Be careful when using nested subroutines or multiple interrupt levels. The CPU may
overwrite data in the RAM during a subroutine or during the interrupt stacking
operation. Once the stack pointer passes $00C0, it wraps round back to $00FF.
TPG
25
相關(guān)PDF資料
PDF描述
MC68HC05G1B 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
MC68HC705JB2DW 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDSO20
MC68HC705JB2P 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP20
MC68HC705JB4P 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP28
MC68HC705K1CDW 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
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MC68HC705J1ACP 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C,IrDA,LIN,SPI,UART/USART 外圍設(shè)備:DMA,PDR,POR,PVD,PWM,溫度傳感器,WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN,36-VFQFPN 包裝:托盤 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... 其它名稱:497-9032STM32F101T8U6-ND
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MC68HC705J2CDW 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:MicroController, 8-Bit, 20 Pin, Plastic, SOP