HD64F2149 Datasheet, PDF (72/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

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