- 您现在的位置：买卖IC网 > PDF目录45323 > MP80C31-12D (ATMEL CORP) 8-BIT, 12 MHz, MICROCONTROLLER, PDIP40 PDF资料下载
参数资料
| 型号： | MP80C31-12D |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 12 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 13/170页 |
| 文件大小： | 4133K |
| 代理商： | MP80C31-12D |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页第159页第160页第161页第162页第163页第164页第165页第166页第167页第168页第169页第170页
11
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
When using the SEI instruction to enable interrupts, the instruction following SEI will be executed before any pend-
ing interrupts, as shown in the following example.
Note:
4.7.1
Interrupt Response Time
The interrupt execution response for all the enabled AVR interrupts is four clock cycles minimum. After four clock
cycles the Program Vector address for the actual interrupt handling routine is executed. During this four clock cycle
period, the Program Counter is pushed onto the Stack. The vector is normally a jump to the interrupt routine, and
this jump takes three clock cycles. If an interrupt occurs during execution of a multi-cycle instruction, this instruction
is completed before the interrupt is served. If an interrupt occurs when the MCU is in sleep mode, the interrupt exe-
cution response time is increased by four clock cycles. This increase comes in addition to the start-up time from the
selected sleep mode.
A return from an interrupt handling routine takes four clock cycles. During these four clock cycles, the Program
Counter (two bytes) is popped back from the Stack, the Stack Pointer is incremented by two, and the I-bit in SREG
is set.
4.8
Register Description
4.8.1
CCP – Configuration Change Protection Register
Bits 7:0 – CCP[7:0] – Configuration Change Protection
In order to change the contents of a protected I/O register the CCP register must first be written with the correct
signature. After CCP is written the protected I/O registers may be written to during the next four CPU instruction
cycles. All interrupts are ignored during these cycles. After these cycles interrupts are automatically handled again
by the CPU, and any pending interrupts will be executed according to their priority.
When the protected I/O register signature is written, CCP[0] will read as one as long as the protected feature is
enabled, while CCP[7:1] will always read as zero.
Table 4-1 shows the signatures that are in recognised.
Assembly Code Example
sei
; set Global Interrupt Enable
sleep
; enter sleep, waiting for interrupt
; note: will enter sleep before any pending interrupt(s)
Bit
7
6
5432
10
CCP[7:0]
CCP
Read/Write
W
WWWW
WW
R/W
Initial Value
0
0000
00
Table 4-1.
Signatures Recognised by the Configuration Change Protection Register
Signature
Group
Description
0xD8
IOREG: CLKMSR, CLKPSR, WDTCSR
Protected I/O register
相关PDF资料 |
PDF描述 |
|---|---|
| MF280C51-20R | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| MS80C51-30R | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQCC44 |
| MS80C51-20D | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQCC44 |
| MF280C31-25R | 8-BIT, 25 MHz, MICROCONTROLLER, PQFP44 |
| MF180C31-16D | 8-BIT, 16 MHz, MICROCONTROLLER, PQFP44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MP81 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:BRIDGE RECTIFIERS |
| MP810 | 制造商:GOOD-ARK 制造商全称:GOOD-ARK Electronics 功能描述:SILICON BRIDGE RECTIFIERS |
| MP-810 | 制造商:JAMECO BENCHPRO 功能描述:4-Piece Plier/Cutter/Screwdrivers Set |
| MP8100 | 制造商:MPS 制造商全称:Monolithic Power Systems 功能描述:Precision High-Side Current-Sense Amplifier |
| MP8100DS | 制造商:MPS 制造商全称:Monolithic Power Systems 功能描述:Precision High-Side Current-Sense Amplifier |
发布紧急采购，3分钟左右您将得到回复。