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參數(shù)資料
| 型號： | MC68HC705P6ACP |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | HCMOS Microcontroller Unit |
| 中文描述： | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁數(shù)： | 97/130頁 |
| 文件大小： | 1541K |
| 代理商： | MC68HC705P6ACP |
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Central Processor Unit (CPU) Core
Registers
MC68HC705P6A
—
Rev. 2.0
Advance Information
MOTOROLA
Central Processor Unit (CPU) Core
97
operand address by adding the index register contents to a 16-bit
immediate value.
The index register can also serve as an auxiliary accumulator for
temporary storage. The index register is unaffected by a reset of the
device.
12.3.3 Stack Pointer
The stack pointer shown in
Figure 12-1
is a 16-bit register internally. In
devices with memory maps less than 64 Kbytes, 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 from the stack.
When accessing memory, the 10 most significant bits are permanently
set to 0000000011. The six least significant register bits are appended
to these 10 fixed bits to produce an address within the range of $00FF
to $00C0. Subroutines and interrupts may use up to 64 ($40) locations.
If 64 locations are exceeded, the stack pointer wraps around and writes
over the previously stored information. A subroutine call occupies two
locations on the stack and an interrupt uses five locations.
12.3.4 Program Counter
The program counter shown in
Figure 12-1
is a 16-bit register internally.
In devices with memory maps less than 64 Kbytes, the unimplemented
upper address lines are ignored. The program counter contains the
address of the next instruction or operand to be fetched.
Normally, the address in the program counter increments to the next
sequential memory location every time an instruction or operand is
fetched. Jump, branch, and interrupt operations load the program
counter with an address other than that of the next sequential location.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲器容量:40KB（20K x 16） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 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: |
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