HD6432646 Hitachi, HD6432646 Datasheet - Page 61

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

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
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