[Info-vax] Looking for 21274 Titan logic core chipset HRM documents and TIGbus documents.

Timothy Stark fsword007 at gmail.com
Fri Mar 19 10:43:29 EDT 2021


Folks,

 

Does anyone have a copy of 21274 Titan logic core chipset HRM document that
is for AlphaServer ES45 systems?  I have SRM image for AlphaServer ES45.
That can be find on Alpha firmware library that HP ftp site provides.  Titan
chipset supports AGP graphics port but is 21272 Tsunami/Typhoon compatible.

 

I have only copy of 21272 Tsunami/Typhoon logic core chipset HRM document
for AlphaServer ES40 systems that DECaxp, ES40 and AXPbox emulator emulates.


 

I am looking for a copy of TGIbus specification documents because 21272 HRM
documents do not have information.  I googled it and was unable find any
sources so far.  How do ES40 and AXPbox emulates TGIbus and flash ROM
accesses without that document?!  I analyzed flash manufacturer ID and
device ID and was able traced back to AM29F016D-AMD flash ROM chip.  I
quickly found a copy of technical manual for that flash chip.  However I am
still looking for TGIbus specifications about hardware registers. 

 

Tim




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