參數(shù)資料
型號: μPD784225Y
廠商: NEC Corp.
英文描述: 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
中文描述: 16位單片機微控制器(16位單片微控制器)
文件頁數(shù): 46/68頁
文件大小: 278K
代理商: ΜPD784225Y
46
μ
PD784224Y, 784225Y
8.2 Vectored Interrupt
Execution branches to a servicing routing by using the memory contents of a vector table address corresponding
to the interrupt source as the address of the branch destination.
So that the CPU performs interrupt servicing, the following operations are performed:
On branching: Saves the status of the CPU (contents of PC and PSW) to stack
On returning : Restores the status of the CPU (contents of PC and PSW) from stack
To return to the main routine from an interrupt service routine, the RETI instruction is used.
The branch destination address is in a range of 0 to FFFFH.
Table 8-3. Vector Table Address
Interrupt Source
Vector Table Address
Interrupt Source
Vector Table Address
BRK instruction
003EH
INTST1
001CH
Operand error
003CH
INTSER2
001EH
NMI
0002H
INSR2
0020H
INTWDT (
non-maskable
)
0004H
INTCSI2
INTWDTM (maskable)
0006H
INTST2
0022H
INTP0
0008H
INTTM3
0024H
INTP1
000AH
INTTM00
0026H
INTP2
000CH
INTTM01
0028H
INTP3
000EH
INTTM1
002AH
INTP4
0010H
INTTM2
002CH
INTP5
0012H
INTAD
002EH
INTIIC0
0016H
INTTM5
00030H
INTCSI0
INTTM6
0032H
INTSER1
0018H
INTWT
0038H
INTSR1
001AH
INTCSI1
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