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Z80 PIO

95 bytes added, 22:33, 10 January 2010
The Zilog [[Z80 PIO]] chip is a Dual 8bit I/O Port(not to be confused with the Triple 8bit 8255 PPI, which is sometimes referred to as PIO, too).
Used by [[ACU Real Time Clock (DIY)]], and [[Dk'tronics Real Time Clock]].
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