PD17012_15 Datasheet, PDF (32/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
Figure 2-4. Specification of Program Counter on Instruction Execution
Instruction
BR addr
CALL addr
Program counter
Contents of program counter (PC)
b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Page 0
0
Page 1
1
Instruction operand (addr)
0
Instruction operand (addr)
BR @AR
CALL @AR
MOVT DBF, @AR
RET
RETSK
RETI
When interrupt is acknowledged
Address register contents
Contents of address stack register (ASR) specified
by stack pointer (SP)
(Return address)
Vector address of each interrupt
Power-on reset, CE reset
000000000000
Table 2-1. Interrupt Vector Address
Priority
1
2
3
4
Internal/External
External
Internal
Internal
Internal
Interrupt Source
INT pin
12-bit timer
Basic timer 1
Serial interface
Vector address
0004H
0003H
0002H
0001H
30
Data Sheet U10101EJ4V0DS