Posted: 2013-08-12 17:59
@ TmEE, [ISA]"That slot does NOT work as is" . Yeah;
for ICH5 and below, ISA can and should work OK.
For ICH6 and up, the ICH itself no longer has all the necessary hardware
functionality built-in for ISA; so e.g. a PCI-to-ISA bridge (chip)
can't intrinsically support ISA DMA & ISA Bus Master transactioning.
If using instead a LPC-TO-ISA bridge (chip) then DMA maybe available
via 'LPC DMA compatible function', & (depending on LPC chip) maybe/maybe
not ISA Bus mastering, maybe/maybe not ISA memory mapped transactions.
That's as I understand it from Intel's short overview of it here;
http://www.intel.com/assets/pdf/whitepaper/318244.pdf
and a quick look at some of the bridge chip makers pdf's.
MMmmmmmm..., your motherboard manual states for the FINTEK F85226FG
LPC-to-ISA chip "By conditions; fully ISA bridge support except bus
master and DMA function", but the FINTEK F85226FG datasheet states;
http://pdf1.alldatasheet.net/datasheet- ... 226FG.html
"Fully ISA bridge support except bus master by conditions" and the pdf
version history shows that sentence was inserted (because)'revised features'
- possibly the DMA functionality was always there, just a typo occured? Cheers
for ICH5 and below, ISA can and should work OK.
For ICH6 and up, the ICH itself no longer has all the necessary hardware
functionality built-in for ISA; so e.g. a PCI-to-ISA bridge (chip)
can't intrinsically support ISA DMA & ISA Bus Master transactioning.
If using instead a LPC-TO-ISA bridge (chip) then DMA maybe available
via 'LPC DMA compatible function', & (depending on LPC chip) maybe/maybe
not ISA Bus mastering, maybe/maybe not ISA memory mapped transactions.
That's as I understand it from Intel's short overview of it here;
http://www.intel.com/assets/pdf/whitepaper/318244.pdf
and a quick look at some of the bridge chip makers pdf's.
MMmmmmmm..., your motherboard manual states for the FINTEK F85226FG
LPC-to-ISA chip "By conditions; fully ISA bridge support except bus
master and DMA function", but the FINTEK F85226FG datasheet states;
http://pdf1.alldatasheet.net/datasheet- ... 226FG.html
"Fully ISA bridge support except bus master by conditions" and the pdf
version history shows that sentence was inserted (because)'revised features'
- possibly the DMA functionality was always there, just a typo occured? Cheers