HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 127

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

5.4.2 Stack Status after Interrupt Handling Sequence
Figure 5-3 (a) and (b) show the stack before and after the interrupt exception-handling sequence.
Address
2m – 4
2m – 3
2m – 2
2m – 1
2m
Notes:
1. PC: The address of the next instruction to be executed is saved.
2. Register saving and restoring must start at an even address (e.g 2m).
Figure 5-3 (a) Stack before and after Interrupt Exception-Handling
Stack area
(Before)
(Minimum Mode)
SP
Save to stack
108
Fig. 5-3(a)
Address
2m – 4
2m – 3
2m – 2
2m – 1
2m
Upper 8 bits of SR
Lower 8 bits of SR
Upper 8 bits of PC
Lower 8 bits of PC
(After)
SP