We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
Seta ST018
From SnesLab
ST018 is a 32-bit ARM-based enhancement chip used for AI in a single game: Hayazashi Nidan Morita Shogi 2. It has 160 pins.
It is clocked by a 21.44MHz oscillator.[2]
The program ROM was dumped by byuu, appearing in 2012. [1]