- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378749 > UPD784224YGC (NEC Corp.) 16/8-BIT SINGLE-CHIP MICROCONTROLLERS PDF資料下載
參數(shù)資料
| 型號： | UPD784224YGC |
| 廠商： | NEC Corp. |
| 英文描述： | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 16/8-BIT單晶片微控制器 |
| 文件頁數(shù)： | 46/92頁 |
| 文件大?。?/td> | 687K |
| 代理商： | UPD784224YGC |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁當前第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁
46
μ
PD784224, 784225, 784224Y, 784225Y
Data Sheet U12376EJ1V0DS00
8. INTERRUPT FUNCTION
As the servicing in response to an interrupt request, the three types shown in Table 8-1 can be selected by
program.
Table 8-1. Servicing of Interrupt Request
Servicing Mode
Entity of Servicing
Servicing
Contents of PC and PSW
Vectored interrupt
Software
Branches and executes servicing routine
(servicing is arbitrary).
Saves to and restores
from stack.
Context switching
Automatically switches register bank,
branches and executes servicing routine
(servicing is arbitrary).
Saves to or restores from
fixed area in register bank
Macro service
Firmware
Executes data transfer between memory
and I/O (servicing is fixed)
Retained
8.1 Interrupt Sources
Table 8-2 shows the interrupt sources available. As shown, interrupts are generated by 25 types of sources,
execution of the BRK instruction, BRKCS instruction, or an operand error.
The priority of interrupt servicing can be set to four levels, so that nesting can be controlled during interrupt
servicing and that which of the two or more interrupts that simultaneously occur should be serviced first. When the
macro service function is used, however, nesting always proceeds.
The default priority is the priority (fixed) of the service that is performed if two or more interrupt requests, having
the same request, simultaneously generate (see
Table 8-2
).
相關PDF資料 |
PDF描述 |
|---|---|
| UPD784225YGC | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
| UPD784225YGK | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
| UPD784225GC | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
| UPD784225GK | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
| UPD784224 | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD784935AGF-113-3BA | 制造商:NEC Electronics Corporation 功能描述: |
| UPD784938AGF-188-3BA | 制造商:NEC Electronics Corporation 功能描述: |
| UPD789104AMC(A)-968-5A4-E2 | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD789104AMC-671-5A4-E1 | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD789104AMC-672-5A4-E1 | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。