upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 59

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

3.4.9 Stack addressing
[Function]
[Description example]
[Illustration]
The stack area is indirectly addressed with the stack pointer (SP) contents.
This addressing method is automatically employed when the PUSH, POP, subroutine call and return
instructions are executed or the register is saved/reset upon generation of an interrupt request.
With stack addressing, only the internal high-speed RAM area can be accessed.
PUSH DE; when saving DE register
SP
SP
Operation code
FEDEH
FEE0H
Preliminary User’s Manual U19014EJ1V0UD
CHAPTER 3 CPU ARCHITECTURE
1
0
FEDEH
FEDFH
FEE0H
1
1
7
0
1
Memory
0
D
E
1
0
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