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| 型號(hào)： | PIC12C671-04I/SM |
| 廠商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 2/129頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU OTP 1KX14 A/D 8-SOIJ |
| 產(chǎn)品培訓(xùn)模塊： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | PIC® 12C |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 4MHz |
| 外圍設(shè)備： | POR，WDT |
| 輸入/輸出數(shù)： | 5 |
| 程序存儲(chǔ)器容量： | 1.75KB（1K x 14） |
| 程序存儲(chǔ)器類型： | OTP |
| RAM 容量： | 128 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 4x8b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 8-SOIC（0.209"，5.30mm 寬） |
| 包裝： | 管件 |
| 配用： | AC164312-ND - MODULE SKT FOR PM3 16SOIC ISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING 309-1048-ND - ADAPTER 8-SOIC TO 8-DIP 309-1047-ND - ADAPTER 8-SOIC TO 8-DIP AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC |
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PIC12C67X
DS30561B-page 10
1999 Microchip Technology Inc.
FIGURE 3-2:
CLOCK/INSTRUCTION CYCLE
EXAMPLE 3-1:
INSTRUCTION PIPELINE FLOW
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
OSC1
Q1
Q2
Q3
Q4
PC
OSC2/CLKOUT
(EXTRC and
PC
PC+1
PC+2
Fetch INST (PC)
Execute INST (PC-1)
Fetch INST (PC+1)
Execute INST (PC)
Fetch INST (PC+2)
Execute INST (PC+1)
Internal
phase
clock
INTRC modes)
All instructions are single cycle, except for any program branches. These take two cycles since the fetched
instruction is “flushed” from the pipeline while the new instruction is being fetched and then executed.
TCY0TCY1TCY2TCY3TCY4TCY5
1. MOVLW 55h
Fetch 1
Execute 1
2. MOVWF GPIO
Fetch 2
Execute 2
3. CALL
SUB_1
Fetch 3
Execute 3
4. BSF
GPIO, BIT3 (Forced NOP)
Fetch 4
Flush
5. Instruction @ address SUB_1
Fetch SUB_1
Execute SUB_1
3.1
Clocking Scheme/Instruction Cycle
The clock input (from OSC1) is internally divided by
four to generate four non-overlapping quadrature
clocks, namely Q1, Q2, Q3 and Q4. Internally, the pro-
gram counter (PC) is incremented every Q1, and the
instruction is fetched from the program memory and
latched into the instruction register in Q4. The instruc-
tion is decoded and executed during the following Q1
through Q4. The clocks and instruction execution flow
is shown in Figure 3-2.
3.2
Instruction Flow/Pipelining
An “Instruction Cycle” consists of four Q cycles (Q1,
Q2, Q3 and Q4). The instruction fetch and execute
are pipelined such that fetch takes one instruction
cycle, while decode and execute takes another
instruction cycle. However, due to the pipelining, each
instruction effectively executes in one cycle. If an
instruction causes the program counter to change
(i.e., GOTO), then two cycles are required to complete
the instruction (Example 3-1).
A fetch cycle begins with the program counter (PC)
incrementing in Q1.
In the execution cycle, the fetched instruction is
latched into the “Instruction Register" (IR) in cycle
Q1. This instruction is then decoded and executed
during the Q2, Q3, and Q4 cycles. Data memory is
read during Q2 (operand read) and written during Q4
(destination write).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC12C671-10 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin, 8-Bit CMOS Microcontroller with A/D Converter |
| PIC12C671-10/JM | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin, 8-Bit CMOS Microcontroller with A/D Converter |
| PIC12C671-10/JW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROCONTROLLER|8-BIT|PIC CPU|CMOS|DIP|8PIN|CERAMIC |
| PIC12C671-10/P | 功能描述:8位微控制器 -MCU 1.75KB 128 RAM 6 I/O 10MHz PDIP8 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC12C671-10/P | 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 12C671 DIP8 |
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