h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 88

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 2 CPU
2.1.4
In comparison to the H8/300H CPU, the H8S/2600 CPU has the following enhancements.
2.2
The H8S/2600 CPU has two operating modes: normal and advanced. Normal mode * supports a
maximum 64-kbyte address space. Advanced mode supports a maximum 16-Mbyte total address
space (architecturally a maximum 16-Mbyte program area and a maximum of 4 Gbytes for
program and data areas combined). The mode is selected by the mode pins of the microcontroller.
Note: * Not available in the chip.
Rev. 6.00 Feb 22, 2005 page 28 of 1484
REJ09B0103-0600
Additional control register
Enhanced instructions
Higher speed
Note: * Not available in the chip.
CPU operating modes
One 8-bit and two 32-bit control registers have been added
Addressing modes of bit-manipulation instructions have been enhanced
A multiply-and-accumulate instruction has been added
Two-bit shift instructions have been added
Instructions for saving and restoring multiple registers have been added
A test and set instruction has been added
Basic instructions execute twice as fast
Differences from H8/300H CPU
CPU Operating Modes
Figure 2-1 CPU Operating Modes
Advanced mode
Normal mode*
Maximum 16-Mbytes for
program and data areas
combined
Maximum 64 kbytes, program
and data areas combined