R0K561668S000BE Renesas Electronics America, R0K561668S000BE Datasheet - Page 21

• Manufacturer Part Number: R0K561668S000BE
• Description: KIT STARTER FOR H8SX/1668
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of R0K561668S000BE

• For Use With/related Products: H8SX/1668
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Contents: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

1.2
The H8SX CPU has four operating modes: normal, middle, advanced and maximum modes. The
mode is selected with the mode pins of the LSI or other sources.
1.2.1
The exception vector table and stack have the same structure as in the H8/300 CPU.
• Address Space
• Extended Registers (En)
• Instruction Set
• Exception Vector Table and Memory Indirect Branch Addresses
The maximum address space of 64 kbytes can be accessed.
The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit
segments of 32-bit registers. When the extended register En is used as a 16-bit register it can
contain any value, even when the corresponding general register Rn is used as an address
register. (If the general register Rn is referenced in the register indirect addressing mode with
pre-/post-increment or pre-/post-decrement and a carry or borrow occurs, however, the value in
the corresponding extended register En will be affected.)
All instructions and addressing modes can be used. Only the lower 16 bits of effective
addresses (EA) are valid.
CPU Operating Modes
Normal Mode
CPU operating modes
Figure 1.1 CPU Operating Modes
Advanced mode
Maximum mode
Normal mode
Middle mode
Rev. 4.00 Sep. 18, 2008 Page 3 of 914
Maximum 64 kbytes for program
and data areas combined
Maximum 16-Mbyte program
area and 64-kbyte data area,
maximum 16 Mbytes for program
and data areas combined
Maximum 16-Mbyte program
area and 4-Gbyte data area,
maximum 4 Gbytes for program
and data areas combined
Maximum 4 Gbytes for program
and data areas combined
REJ09B0102-0400
Section 1 CPU