H8SX1663 datasheet(80/1158 Pages) RENESAS

Il numero della parte	H8SX1663

Spiegazioni elettronici	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1158 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

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Section 2 CPU

Rev.1.00 Jun. 07, 2006 Page 28 of 1102

REJ09B0294-0100

H'00000000

H'00000003

H'00000004

Exception vector table

Reset exception vector

H'00000007

H'00000001

H'00000002

H'00000005

H'00000006

Figure 2.6 Exception Vector Table (Maximum Modes)

The memory indirect (@@aa:8) and extended memory indirect (@@vec:7) addressing modes

are used in the JMP and JSR instructions. An 8-bit absolute address included in the instruction

code specifies a memory location. Execution branches to the contents of the memory location.

In maximum mode, an operand is a 32-bit (longword) operand, providing a 32-bit branch

address.

• Stack Structure

The stack structure of PC at a subroutine branch and that of PC and CCR at an exception

handling are shown in figure 2.7. The PC contents are saved or restored in 32-bit units. The

EXR contents are saved or restored regardless of whether or not EXR is in use.

(a) Subroutine Branch

(b) Exception Handling

(32 bits)

EXR

CCR

(32 bits)

Figure 2.7 Stack Structure (Maximum Mode)

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