6562/6563 datasheet

[eslapion]

The 6502 uses one half of every clock cycle while the 6560/61 uses the other half. This is not multiplexing, unless you desperately want to confuse everyone.

What??

Find me a single place in the VIC-20's P.R.G. where the expression "multiplexed" is used?

It's called a "high speed shared address bus".

[groepaz]

What??

"The fool uses one half of every time unit while the barf uses the other half." is a textbook example of multiplexing (in the time domain), and thats why it is called multiplexing, unless you need a catchy phrase for a document that is mostly read by aspiring programmers rather than tech people :=) just like Kakemoms explained, its common/universal terminology and certainly correct in this case, no matter what the RPG calls it.

[eslapion]

What??

"The fool uses one half of every time unit while the barf uses the other half." is a textbook example of multiplexing (in the time domain), and thats why it is called multiplexing, unless you need a catchy phrase for a document that is mostly read by aspiring programmers rather than tech people :=) just like Kakemoms explained, its common/universal terminology and certainly correct in this case, no matter what the RPG calls it.

Possible...

I didn't understand a damn thing what he was talking about because... historically... Commodore refers to multiplexing as one specific component signaling to another using the same line to exchange 2 different type of information (i.e. Address low/address high) during the same half cycle as opposed to different components using the same line to exchange the same type of information (i.e. A0-A15 and D0-D7) at a different time.

There is no information multiplexing in the VIC-20, there is in the C64.

OR

Multiplexing in Commodore terminology could be viewed as using the same bus/lines to convey multiple parts of one information (i.e. the address
being accessed by the CPU or the video chip).

Multiplexing/multiplexed/multiplex is NOT used to describe the bus sharing that takes place in the C64 and VIC-20 specifically to avoid confusing one with the other.

But if you want to throw aside expressions and nomenclatures which were intentionally put in place 35 years ago...

[groepaz]

"multiplexing" ment the same 40 years ago as it does now. only because someone used a catchy marketing phrase for some of it, that doesnt mean its not multiplexing anymore - or even that techy people didnt call it multiplexing 40 years ago. you are just overinterpreting the importance of the wording used by commodores PRG there.