h8s2277 Renesas Electronics Corporation., h8s2277 Datasheet - Page 46

• Manufacturer Part Number: h8s2277
• Description: Hitachi Single-chip Microcomputer H8s/2276 Series
• Manufacturer: Renesas Electronics Corporation.

Stack Structure: In advanced mode, when the program counter (PC) is pushed onto the stack in a
subroutine call, and the PC, condition-code register (CCR), and extended control register (EXR)
are pushed onto the stack in exception handling, they are stored as shown in figure 2.5. When
EXR is invalid, it is not pushed onto the stack. For details, see section 4, Exception Handling.
24
SP
Notes: *1
*2
*3
(a) Subroutine Branch
When EXR is not used it is not stored on the stack.
SP when EXR is not used.
Ignored when returning.
Reserved
(24 bits)
Figure 2.5 Stack Structure in Advanced Mode
PC
(SP
SP
*2
)
(b) Exception Handling
Reserved
(24 bits)
EXR
CCR
PC
*1
*1,*3