HD6417750RF240V Datasheet, PDF (49/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 2 CPU
Section 2 CPU
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 linear address space, and is ideal for realtime control.
This section describes the H8S/2600 CPU. The usable modes and address spaces differ depending
on the product. For details on each product, refer to section 3, MCU Operating Modes.
2.1 Features
• Upward-compatible with H8/300 and H8/300H CPUs
⎯ Can execute H8/300 and H8/300H CPUs object programs
• General-register architecture
⎯ Sixteen 16-bit general registers also usable as sixteen 8-bit registers or eight 32-bit registers
• Sixty-nine basic instructions
⎯ 8/16/32-bit arithmetic and logic instructions
⎯ Multiply and divide instructions
⎯ Powerful bit-manipulation instructions
⎯ Multiply-and-accumulate instruction
• 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
• High-speed operation
⎯ All frequently-used instructions execute in one or two states
⎯ 8/16/32-bit register-register add/subtract: 1 state
⎯ 8 × 8-bit register-register multiply:
3 states
⎯ 16 ÷ 8-bit register-register divide:
12 states
Rev. 7.00 Sep. 11, 2009 Page 13 of 566
REJ09B0211-0700