Hello Luk, Hello List.
On 1/3/19 1:40 AM, Luke Kenneth Casson Leighton wrote:
Can I make a special request to include a T gate (transmission gate) in that list as it is a critical and little understood component of an efficient NxN crossbar.
Well, transmission gates are already on the list. Or being more earnest - they are the point where my Standard Cell Library stuck. Most effective (in meaning of size and transistor count) cells with storage (Latches) and multiplexer are based on transmission gates.
I really like to measure both transistors first, as components, before I compose transfer gates out of them. So they don't get it to the PearlRiver.
But yes, transfer gates are feasible, on the wish list and you'll get them as soon as the PMOS and NMOS are characterized with PearlRiver :-)
And regarding your NxN crossbar - for a quite nice RISC-V multiplier I already planed to hand-crafting a Barrel Shifter (https://en.wikipedia.org/wiki/Barrel_shifter) which is a structure close to your crossbar.
Thanks for reminding me!
Regards, Hagen.