Unfortunately, WDC did not pick up the 65C32 RIOTs with it's product line so will be building up a test board soon to test alternatives for the 6532. Haven't yet looked at this indepth yet but considering the possibility of remapping the I/O within 65C22 registers, remapping the internal RAM and tossing the Timer into a CPLD. It's been a long time since I have looked into 6522s so this effort might not get past page 1 if the register map is too far out of whack.
Anybody else ever tackle a 6532 replacement?
I did place the whole thing into a Xilinx Spartan FPGA a few years back - worked ok but not really what I was looking for.

Trying to keep the pinball people happy.
Got tired of not having 6502 stuff so I finally became a distributor for WDC.
Now listed on WDC's authorized distributor page but for some reason they only list us as selling one part.
Slowly building up inventory --
https://www.greatplainselectronics.com/WDC.asp

Ed (G-P-E)

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x86?  We ain't got no x86.  We don't NEED no stinking x86!

> Anybody else ever tackle a 6532 replacement?
Not that I'm immediately aware of, but surely someone has. A bit of searching shows that Hans Otten has collected several links:
http://retro.hansotten.nl/6502-sbc/6530-6532/

Daryl tried fitting a design in a CPLD and thought it might be feasible:
viewtopic.php?p=7476#p7476

And I see there's a project here:
https://www.pinballinfo.com/community/t ... -ic.48661/

> Got tired of not having 6502 stuff so I finally became a distributor for WDC.
Well done Ed!

Added 65C816's to the list of parts to stock. So far - you are the first to ask for them.

I see your 6502 (W65C02S6TPG-14) is still $6.50 in quantity 1-9, which is significantly lower than Mouser. What is your price for 65C816? I'm interested in quantity of 10. Thanks,
Bill

Based on cost - I am guessing the 65C816 to be about $7.50 each 1-9 and 10% off above that.
I have no idea what Mouser is doing with their pricing. There has been no price increase in these parts in more than a year.

I can't find ordering info on your website, so I've email in a request for quote for 10pcs W65C816. Thanks,
Bill

_________________
x86?  We ain't got no x86.  We don't NEED no stinking x86!

As of last spring, WDC was still shipping parts with Sanyo dies for the PDIP parts and that they had not yet moved to TSMC for the PDIPs (W65C816S6PG-14). My latest list from them still shows this.

I assume but am not sure that the PLCC and QFP parts are TSMC with part numbers W65C816S6TPLG-14 and W65C816S6TQG-14, respectively.

_________________
x86?  We ain't got no x86.  We don't NEED no stinking x86!

> W65C816S6T - 2006 - PLCC and QFP devices are in production. PDIP parts are still W65C816S6PG-14 devices using Sanyo .6u wafers (Most of these parts in the wild have a date code of 1023, 0627 laser marked or 0435 ink marked). We just sent out some TSMC wafers for PDIP packaging so there will be some W65C816S6TPG-14 devices with date codes starting with "20".

It's somewhat interesting how long the supply pipeline is here. Wafers are produced in lots of typically 25. For a small design and a large wafer, that's a lot(!) of chips. If WDC hold wafers and drip-feed them out to test and packaging, which will help their cashflow, and if there are then some stocks of the finished article in the supply chain, and if sales of specific parts are not terribly high volume, we can see it could be quite a long time before a switch of foundry fully flushes through the pipe.

_________________
x86?  We ain't got no x86.  We don't NEED no stinking x86!