Renesas H8S Series Hardware Manual page 53

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 2-2. When EXR is invalid, it is not pushed onto the stack. For details, see section 4,
Exception Handling.
SP
Notes: 1.
Reserved
PC
(24 bits)
(a) Subroutine Branch
When EXR is not used it is not stored on the stack.
2. SP when EXR is not used.
3. Ignored when returning.
Figure 2-2 Stack Structure in Advanced Mode
SP EXR
Reserved
*2
(SP )
CCR
PC
(24 bits)
(b) Exception Handling
Rev.6.00 Oct.28.2004 page 25 of 1016
*1
*1*3
REJ09B0138-0600H