opticpow
2013-10-29 05:21:18 UTC
Hi All,
In down time between getting my boards build, I've been working on my
understanding of the hardware. I'm currently reading Build Your Own Z80
Computer by Ciarica, and have a question about the Address Bus and Output
Buffering (Page 98). The author discusses the reasons for buffering (which
makes sense) and I was wondering if the parts he describes (74367 for
Address Bus and 8212 for the data /control) are functionally what the
LS245's are doing on the SBCv2?
If that is the case, has my probing of the pins of the z80 on my SBC using
a scope & logic probe just been lucky not to overload the outputs on the
z80, or am I up the wrong tree?
Thanks,
Wayne.
In down time between getting my boards build, I've been working on my
understanding of the hardware. I'm currently reading Build Your Own Z80
Computer by Ciarica, and have a question about the Address Bus and Output
Buffering (Page 98). The author discusses the reasons for buffering (which
makes sense) and I was wondering if the parts he describes (74367 for
Address Bus and 8212 for the data /control) are functionally what the
LS245's are doing on the SBCv2?
If that is the case, has my probing of the pins of the z80 on my SBC using
a scope & logic probe just been lucky not to overload the outputs on the
z80, or am I up the wrong tree?
Thanks,
Wayne.
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