SYSCK
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(Redirected from SYSCLK)
SYSCK (System Clock) is a signal that is produced by the S-CPU, coming out of pin 72. It goes into:
- pin 6 of WRAM.
- pin pad 57 of the Cartridge Slot (both 46-pin and 62-pin cartridges have this pin)
According to the jwdonal schematic, it is most likely the current memory access cycle clock.