r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 75

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

2.2.2
• Address Space
• Extended Registers (En)
• Instruction Set
• Exception Vector Table and Memory Indirect Branch Addresses
Linear access is provided to a 16-Mbyte maximum address space.
The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit
segments of 32-bit registers or address registers.
All instructions and addressing modes can be used.
In advanced mode the top area starting at H'00000000 is allocated to the exception vector table
in units of 32 bits. In each 32 bits, the upper 8 bits are ignored and a branch address is stored in
the lower 24 bits (figure 2.3). For details of the exception vector table, see section 4, Exception
Handling.
Advanced Mode
H'00000000
H'00000003
H'00000004
H'00000007
H'00000008
H'0000000B
H'0000000C
H'00000010
Figure 2.3 Exception Vector Table (Advanced Mode)
(Reserved for system use)
(Reserved for system use)
Reset exception vector
Exception vector 1
Reserved
Reserved
Reserved
Rev. 1.00 Sep. 19, 2008 Page 47 of 1270
Exception vector table
REJ09B0466-0100
Section 2 CPU