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HD6432351 Datasheet(PDF) 62 Page - Renesas Technology Corp |
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HD6432351 Datasheet(HTML) 62 Page - Renesas Technology Corp |
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62 / 1025 page ![]() Section 2 CPU Rev. 3.00 Sep 15, 2006 page 28 of 988 REJ09B0330-0300 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. (a) Subroutine Branch (b) Exception Handling PC (24 bits) EXR*1 Reserved*1 *3 CCR PC (24 bits) SP SP Notes: 1. 2. 3. When EXR is not used it is not stored on the stack. SP when EXR is not used. Ignored when returning. (SP ) *2 Reserved Figure 2.5 Stack Structure in Advanced Mode |
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