HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 31

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HD6433045

Manufacturer Part Number
HD6433045
Description
Hitachi Single-Chip Microcomputer
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet

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2.1.2 Differences from H8/300 CPU
In comparison to the H8/300 CPU, the H8/300H has the following enhancements.
High-speed operation
— All frequently-used instructions execute in two to four states
— Maximum clock frequency:
— 8/16/32-bit register-register add/subtract: 111 ns/125 ns (flash memory version)
— 8
— 16 ÷ 8-bit register-register divide:
— 16 16-bit register-register multiply:
— 32 ÷ 16-bit register-register divide:
Two CPU operating modes
— Normal mode (not available in the H8/3048 Series)
— Advanced mode
Low-power mode
Transition to power-down state by SLEEP instruction
More general registers
Eight 16-bit registers have been added.
Expanded address space
— Advanced mode supports a maximum 16-Mbyte address space.
— Normal mode supports the same 64-kbyte address space as the H8/300 CPU.
Enhanced addressing
The addressing modes have been enhanced to make effective use of the 16-Mbyte address
space.
Enhanced instructions
— Data transfer, arithmetic, and logic instructions can operate on 32-bit data.
— Signed multiply/divide instructions and other instructions have been added.
(Normal mode is not available in the H8/3048 Series.)
8-bit register-register multiply:
16
18 MHz/16 MHz (flash memory version)
778 ns/875 ns (flash memory version)
778 ns/875 ns (flash memory version)
1.221 ns/1.375 ns (flash memory version)
1.221 ns/1.375 ns (flash memory version)

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