Understanding the Super Nintendo's Hardware Architecture: Clock Signals and Component Synchronization
By
droppedasbaby
If you only eat one bagel today, this is the bagel.
Summary
A deep-dive technical analysis of the Super Nintendo Entertainment System (SNES) hardware architecture, focusing on how its components work together at the hardware level. The article explains the role of clock signals (CLK) in synchronizing various processors including the CPU (Motorola 68000-like), custom graphics chips, and audio processing units. It describes how the master clock generates timing signals that propagate through the system to coordinate all operations, with particular attention to the SNES's unique dual-CPU design and its custom graphics and sound coprocessors.
Key quotes
· 4 pulledWhen I start studying a vintage system, the first thing I like to do is understand how its components work together at the hardware level.
Every computer has at least one heart which dictates the tempo to all the other chips.
The CloCK output pin is connected to a copper line which spreads to most components, into their CLK input pin.
If you are mostly a software person like me, you may have never noticed it but all kinds of processors have a CLK input pin.
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