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Half a byte

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jgharston
1216857.  Fri Dec 16, 2016 5:31 pm Reply with quote

Oi oi! Half a byte is a nybble not a nibble.
bite -> nibble
byte -> nybble

 
PDR
1216861.  Fri Dec 16, 2016 6:28 pm Reply with quote

Sorry, but no it isn't!

You can show this easily enough by looking up older datasheets. For example the Intel 8255*. It had two 8-bit ports and a third which could be split into two four-bit ports as control lines for the other two ports. Its datasheet would have been published way back in the early 70s. In its table 1 you will see the control ports described as upper and lower nibbles (not nybbles) of Port C.

PDR

* the PPI chip at the heart of most of the DIO cards I used back in the early 80s for the brief period I actually practiced as an electronic engineer before switching to aviation

 

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