UPD784035YGC NEC, UPD784035YGC Datasheet - Page 48

• Manufacturer Part Number: UPD784035YGC
• Description: 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: NEC

8.2
to the interrupt source as the address of the branch destination.
48
Execution branches to a servicing routing by using the memory contents of a vector table address corresponding
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.
Vectored Interrupt
BRK instruction
Operand error
NMI
WDT
INTP0
INTP1
INTP2
INTP3
INTC00
INTC01
INTC10
INTC11
INTC20
INTC21
INTC30
INTP4
INTP5
INTAD
INTSER
INTSR
INTCSI1
INTST
INTCSI
INTSER2
INTSR2
INTCSI2
INTST2
INTSPC
Interrupt Source
Table 8-3. Vector Table Address
003EH
003CH
0002H
0004H
0006H
0008H
000AH
000CH
000EH
0010H
0012H
0014H
0016H
0018H
001AH
001CH
001EH
0020H
0022H
0024H
0026H
0028H
002AH
002CH
002EH
0030H
PD784035Y, 784036Y, 784037Y, 784038Y
Vector Table Address