GMS81C5108 Datasheet, PDF (23/102 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C5108
At execution of a
CALL/TCALL/PCALL
At acceptance
of interrupt
At execution
of RET instruction
00BC
00BD
00BE
00BF
PCL
PCH
Push
down
00BC
00BD
00BE
00BF
PSW
PCL
PCH
Push
down
00BC
00BD
00BE PCL
Pop
00BF PCH
up
SP before
execution
SP after
execution
00BF
00BD
00BF
00BC
00BD
00BF
At execution
of PUSH instruction
PUSH A (X,Y,PSW)
00BC
00BD
00BE
00BF
A
Push
down
SP before
execution
SP after
execution
00BF
00BE
At execution
of POP instruction
POP A (X,Y,PSW)
00BC
00BD
00BE
00BF
A
Pop
up
00BE
00BF
At execution
of RETI instruction
00BC
00BD PSW
00BE PCL
Pop
up
00BF PCH
00BC
00BF
0000_H
Stack
depth
00BF_H
Figure 8-4 Stack Operation
20
JUNE 2001 Ver 1.0