Section 2 Cpu; Overview; Features - Renesas H8S/2319 series Hardware Manual

2.1

Overview

The H8S/2000 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/2000 CPU has sixteen 16-bit
general registers, can address a 16-Mbyte (4-Gbyte architecturally) linear address space, and is
ideal for realtime control.
2.1.1

Features

The H8S/2000 CPU has the following features.
• Upward-compatible with H8/300 and H8/300H CPUs
 Can execute H8/300 and H8/300H object programs
• General-register architecture
 Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit
registers)
• Sixty-five basic instructions
 8/16/32-bit arithmetic and logic instructions
 Multiply and divide instructions
 Powerful bit-manipulation instructions
• Eight addressing modes
 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]
• 16-Mbyte address space
 Program: 16 Mbytes
 Data:
16 Mbytes (4 Gbytes architecturally)

Section 2 CPU

Rev. 5.00, 12/03, page 25 of 1088