HD6412350 Hitachi, HD6412350 Datasheet - Page 48

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

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.
28
SP
Notes: 1.
(a) Subroutine Branch
2.
3.
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