H8SLASH3028F datasheet(108/923 Pages) RENESAS

No. de pieza	H8/3028F

Descripción Electrónicos	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

PDF	923 Pages

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Fabricante Electrónico	RENESAS [Renesas Technology Corp]

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108 / 923 page

Rev. 2.00, 09/03, page 78 of 890

4.5

Stack Status after Exception Handling

Figure 4.6 shows the stack after completion of trap instruction exception handling and interrupt

exception handling.

SP–4

SP–3

SP–2

SP–1

SP (ER7) →

SP (ER7)

SP+1

SP+2

SP+3

SP+4

→

SP–4

SP–3

SP–2

SP–1

SP (ER7) →

SP (ER7)

SP+1

SP+2

SP+3

SP+4

→

Before exception handling

After exception handling

Stack area

CCR

After exception handling

Even address

Pushed on stack

a. Normal mode

b. Advanced mode

Legend

PCE:

PCH:

PCL:

CCR:

SP:

Notes: PC indicates the address of the first instruction that will be executed after return.

Registers must be saved in word or longword size at even addresses.

* Ignored at return.

Bits 23 to 16 of program counter (PC)

Bits 15 to 8 of program counter (PC)

Bits 7 to 0 of program counter (PC)

Condition code register

Stack pointer

Figure 4.6 Stack after Completion of Exception Handling

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