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SMPC

Abbreviation for System Manager & Peripheal Control. It has system-wide reset management, interface control with input devices (control pad, mouse, etc.), time display with real-time clock, and battery backup function.

Data

Bit is the smallest unit that represents 0 or 1. 8 bits are collectively called a byte (Byte), 16 bits (or 2 bytes) is called a word (Word), and 32 bits (or 4 bytes) is called a long word.

A_Bus

Bus to connect external devices such as ROM cassette and CD.

B_Bus

Bus to which VDP1, VDP2, and SCSP are connected.

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