- 您现在的位置：买卖IC网 > PDF目录80361 > M37512F8-XXXHP 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 PDF资料下载
参数资料
| 型号： | M37512F8-XXXHP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件页数： | 9/89页 |
| 文件大小： | 877K |
| 代理商： | M37512F8-XXXHP |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第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
Feb 18, 2005
page 15 of 85
REJ03B0122-0101
7512 Group
INTERRUPTS
Interrupts occur by 16 sources among 20 sources: seven external,
twelve internal, and one software.
Interrupt Control
Each interrupt is controlled by an interrupt request bit, an interrupt
enable bit, and the interrupt disable flag except for the software in-
terrupt set by the BRK instruction. An interrupt occurs if the
corresponding interrupt request and enable bits are “1” and the in-
terrupt disable flag is “0”.
Interrupt enable bits can be set or cleared by software.
Interrupt request bits can be cleared by software, but cannot be
set by software.
The reset and the BRK instruction cannot be disabled with any
flag or bit. The I (interrupt disable) flag disables all interrupts ex-
cept the reset and the BRK instruction interrupt.
When several interrupts occur at the same time, the interrupts are
received according to priority.
Interrupt Operation
By acceptance of an interrupt, the following operations are auto-
matically performed:
1. The contents of the program counter and the processor status
register are automatically pushed onto the stack.
2. The interrupt disable flag is set and the corresponding interrupt
request bit is cleared.
3. The interrupt jump destination address is read from the vector
table into the program counter.
sNotes
When setting the followings, the interrupt request bit may be set to
“1”.
When switching external interrupt active edge
Related register: Interrupt edge selection register 1 (address 003A16)
I2C START/STOP condition control register
(address 003016)
Timer XY mode register (address 002316)
When switching interrupt sources of an interrupt vector address
where two or more interrupt sources are allocated
Related register: Interrupt edge selection register 1
(address 003A16)
When not requiring for the interrupt occurrence synchronized with
these setting, take the following sequence.
(1) Set the corresponding interrupt enable bit to “0” (disabled).
(2) Set the interrupt edge select bit or the interrupt source select
bit.
(3) Set the corresponding interrupt request bit to “0” after 1 or
more instructions have been executed.
(4) Set the corresponding interrupt enable bit to “1” (enabled).
相关PDF资料 |
PDF描述 |
|---|---|
| M38227ECHP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP80 |
| M37478M8TXXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP56 |
| M38203E4-XXXHP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP80 |
| M38503E4-XXXFP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO42 |
| MB90347EPFV | MICROCONTROLLER, PQFP100 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37512FCHHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FCHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FCH-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FC-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M-375-1-342 | 制造商:Brady Corporation 功能描述:WIRE MARKER SLEEVES, HEAT-SHRINK, 1.015"W, 80; Marker Material:PO (Polyolefin); Marker Dimensions:16.38mm x 25.78mm; Legend:Blank (No Legend); Legend Color:Black; Background Color:White; Color:Black on White; Series:M ;RoHS Compliant: Yes |
发布紧急采购，3分钟左右您将得到回复。