GMS81508B HYNIX [Hynix Semiconductor], GMS81508B Datasheet - Page 23

• Manufacturer Part Number: GMS81508B
• Description: HYUNDAI MICRO ELECTRONICS 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: HYNIX [Hynix Semiconductor]

GMS81508B/16B/24B
20
SP before
execution
SP after
execution
01FE
01FD
01FC
01FB
At execution of
a CALL/TCALL/PCALL
PCH
PCL
01FE
01FC
SP before
execution
SP after
execution
Push
down
01FD
01FC
01FE
01FB
At execution
of PUSH instruction
PUSH A (X,Y,PSW)
01FE
01FD
01FC
01FB
01FE
01FD
A
At acceptance
of interrupt
PCH
PCL
PSW
01FE
01FB
Push
down
Figure 8-4 Stack Operation
Push
down
01FE
01FD
01FC
01FB
At execution
of POP instruction
POP A (X,Y,PSW)
01FE
01FD
01FC
01FB
01FD
01FE
A
At execution
of RET instruction
PCH
PCL
01FC
01FE
Pop
up
Pop
up
HYUNDAI MicroElectronics
01FD
01FC
01FE
01FB
0100H
01FEH
At execution
of RET instruction
DEC. 1999 Ver 1.04
PCH
PSW
PCL
01FB
01FE
Stack
depth
Pop
up