m38039g6hsp Renesas Electronics Corporation., m38039g6hsp Datasheet - Page 11

• Manufacturer Part Number: m38039g6hsp
• Description: Single-chip 8-bit Cmos Microcomputer
• Manufacturer: Renesas Electronics Corporation.

3803 Group (Spec.H QzROM version)
Rev.1.10
REJ03B0166-0110
Fig 7.
Table 6
Accumulator
Processor status register
Push Return
Address
on Stack
POP Return
Address from
Stack
Register push and pop at interrupt generation and subroutine call
Push and pop instructions of accumulator or processor status register
Nov 14, 2005
Note : Condition for acceptance of an interrupt → Interrupt enable flag is “1”
M(S)←(PC
(S)←(S) + 1
(PC
(S)←(S) − 1
M(S)←(PC
(
(S)←(S) + 1
(PC
S
Execute RTS
Subroutine
)
←
L
H
(
)←M(S)
)←M(S)
S
)
−
Interrupt request
1
Page 11 of 91
H
L
)
)
(Note)
On-going Routine
Execute JSR
Push instruction to stack
PHA
PHP
Interrupt disable flag is “0”
Service Routine
M(S)←(PC
(S)←(S) − 1
M(S)←(PC
(S)←(S) − 1
(S)←(S) + 1
(S)←(S) + 1
(PC
(S)←(S) + 1
(PC
(S)←(S) − 1
M(S)←(PS)
(PS)←M(S)
Execute RTI
Interrupt
L
H
)←M(S)
)←M(S)
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
H
L
Pop instruction from stack
)
)
Push Return Address
on Stack
Push Contents of
Processor
Status Register on Stack
POP Contents of
Processor Status Register
from Stack
POP Return
Address from Stack
I Flag is Set from
“0” to “1”
Fetch the Jump
Vector
PLA
PLP