h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 53

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

2.1
The H8S/2600 CPU is a high-speed central processing unit with an internal 32-bit architecture that
is upward-compatible with the H8/300 and H8/300H CPUs. The H8S/2600 CPU has sixteen 16-bit
general registers, can address a 16-Mbyte (architecturally 4-Gbyte) linear address space, and is
ideal for realtime control.
2.1.1
The H8S/2600 CPU has the following features.
• Upward-compatible with H8/300 and H8/300H CPUs
• General-register architecture
• Sixty-nine basic instructions
• Eight addressing modes
• 16-Mbyte address space
 Can execute H8/300 and H8/300H object programs
 Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit
 8/16/32-bit arithmetic and logic instructions
 Multiply and divide instructions
 Powerful bit-manipulation instructions
 Multiply-and-accumulate instruction
 Register direct [Rn]
 Register indirect [@ERn]
 Register indirect with displacement [@(d:16,ERn) or @(d:32,ERn)]
 Register indirect with post-increment or pre-decrement [@ERn+ or @–ERn]
 Absolute address [@aa:8, @aa:16, @aa:24, or @aa:32]
 Immediate [#xx:8, #xx:16, or #xx:32]
 Program-counter relative [@(d:8,PC) or @(d:16,PC)]
 Memory indirect [@@aa:8]
 Program: 16 Mbytes
 Data:
registers)
Overview
Features
16 Mbytes (4 Gbyte architecturally)
Section 2 CPU
Rev. 5.00 Sep 22, 2005 page 27 of 1136
REJ09B0257-0500
Section 2 CPU